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how to understand current flowing in a circuit.
asked
Dec 2, 2017
by
ajay1992
reshown
Apr 6, 2018
by
anonymous
Details of current flowing direction to clear concept
current
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commented
Dec 2, 2017
by
GK_NERIST
Mate!! the question isn't clear
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asked
Jun 29, 2019
by
anonymous
Explain why potential difference is necessary to produce current in a circuit.
Explain why potential difference is necessary to produce current in a circuit.
explain
why
potential
difference
is
necessary
to
produce
current
in
a
circuit
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asked
Mar 15, 2018
by
anonymous
How eddy current is produced in a transformer?
How eddy current is produced in a transformer?
eddy
current
transformer
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104
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0
answers
asked
May 8, 2018
by
anonymous
In a series R-C circuit, with the increase in frequency, current
In a series R-C circuit, with the increase in frequency, current (A) Reduces (B) Increases (C) Does not change (D) Becomes zero
Last answer:
In a series R-C circuit, with the increase in frequency, current Increases
series
r-c
circuit
frequency
current
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1
answer
asked
Mar 25, 2018
by
anonymous
In a loss-free R-L-C circuit the transient current is?
In a loss-free R-L-C circuit the transient current is?
Last answer:
In a loss-free R-L-C circuit the transient current is sinusoidal.
loss
rlc
circuit
transient
current
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267
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1
answer
asked
May 30, 2019
by
anonymous
How to find total impedance Z, current I and Impedance angle ?
How to find total impedance Z, current I and Impedance angle ?
Last answer:
How to find total impedance Z, current I and Impedance angle ?
how
to
find
total
impedance
z
current
i
and
angle
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109
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2
answers
asked
Mar 10, 2018
by
anonymous
How can a magnetic field be used to generate an electric current?
How can a magnetic field be used to generate an electric current?
Last answer:
Magnetic field can be used to generate electric current on a condition that it is on a rate of changing magnetic flux. (Faraday's law)
magnetic
field
used
generate
electric
current
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1
answer
asked
Mar 25, 2018
by
anonymous
Magnitude of current at resonance in R-L-C circuit?
Magnitude of current at resonance in R-L-C circuit?
Last answer:
The current will be maximum if it is a series rlc circuit.
magnitude
current
resonance
rlc
circuit
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2
answers
asked
Mar 14, 2018
by
anonymous
What is the direction of flow of electric current in an electric circuit?
What is the direction of flow of electric current in an electric circuit?
Last answer:
It flows from anode to cathode (direction of holes flow)
direction
flow
electric
current
circuit
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144
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1
answer
asked
Jul 1, 2019
by
anonymous
A charge of 0.1 C moves past a given point every 0.01 s. How much is the current?
A charge of 0.1 C moves past a given point every 0.01 s. How much is the current?
Last answer:
The current is 10.0A. 1ampere = 1 Coulomb per 1 second. 0.1Coulombs ÷ 0.01seconds = 10.0amperes.
a
charge
of
0
1
c
moves
past
given
point
every
01
s
how
much
is
the
current
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1
answer
asked
Apr 29, 2018
by
anonymous
In a series RLC high Q circuit, the current peaks at a frequency
In a series RLC high Q circuit, the current peaks at a frequency (1) equal to the resonant frequency (2) greater than the resonant frequency (3) less than the resonant frequency (4) equal to half the resonant frequency
Last answer:
In a series RLC high Q circuit, the current peaks at a frequency equal to the resonant frequency
series
rlc
circuit
current
peaks
frequency
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1
answer
asked
Apr 28, 2018
by
anonymous
In the induction type directional over current relay, when a short-circuit occurs in the circuit
In the induction type directional over current relay, when a short-circuit occurs in the circuit (A) power flows in reverse direction (B) power flows in normal direction (C) directional power element does not operate (D) over current element is not energized
Last answer:
In the induction type directional over current relay, when a short-circuit occurs in the circuit power flows in reverse direction
induction
type
directional
over
current
relay
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75
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1
answer
asked
Apr 12, 2018
by
anonymous
The amount of current flowing through a circuit with a 40 V source and 6.8 kΩ of resistance is equal to:
The amount of current flowing through a circuit with a 40 V source and 6.8 kΩ of resistance is equal to: A. 27.2 mA B. 59 mA C. 5.9 mA D. 590 mA
Last answer:
The amount of current flowing through a circuit with a 40 V source and 6.8 kΩ of resistance is equal to: 5.9 mA
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1
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asked
Apr 29, 2018
by
anonymous
The current flow in a battery is due to ______
The current flow in a battery is due to ______ A) movement of ions B) movement of protons C) movement of holes D) movement of neutrons
Last answer:
The current flow in a battery is due to movement of ions
current
flow
battery
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74
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1
answer
asked
Mar 15, 2018
by
anonymous
How eddy current can be minimized?
How eddy current can be minimized?
eddy
current
minimized
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57
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0
answers
asked
Mar 14, 2018
by
anonymous
How does AC current change direction?
How does AC current change direction?
Last answer:
This is because the angle at which the magnetic fields cuts across a winding changes its poles thus current has to change dirention .
ac
current
change
direction
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67
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1
answer
asked
Mar 14, 2018
by
anonymous
How can we increase the induced current?
How can we increase the induced current?
Last answer:
Induced current can be increased by reducing no of windings on the secondary part compared to primary.
increase
induced
current
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62
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1
answer
asked
Apr 29, 2018
by
anonymous
Consider a circuit with four 10 Ω resistors connected in parallel and the current flowing through the circuit is
Consider a circuit with four 10 Ω resistors connected in parallel and the current flowing through the circuit is 5 A. What will be the current if the above 4 resistors are connected in parallel? A) 5 A B) 50 A C) 500 A D) None of these
Last answer:
Consider a circuit with four 10 Ω resistors connected in parallel and the current flowing through the circuit is 5 A. What will be the current if the above 4 resistors are connected in parallel? A) 5 A B) 50 A C) 500 A D) None of these
circuit
resistors
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94
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1
answer
asked
Apr 30, 2018
by
anonymous
In parallel RLC resonance circuit at resonance the current will be
In parallel RLC resonance circuit at resonance the current will be (1) Minimum (2) Maximum (3) Zero (4) Infinite
Last answer:
In parallel RLC resonance circuit at resonance the current will be Minimum
parallel
rlc
resonance
circuit
current
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1
answer
asked
Mar 19, 2018
by
anonymous
In which fault the maximum short circuit current occurs?
In which fault the maximum short circuit current occurs?
Last answer:
In three phase bolted fault the maximum short circuit occurs.
fault
maximum
short
circuit
current
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91
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1
answer
asked
Apr 29, 2018
by
anonymous
The armature current on symmetrical 3 phase short circuit of a synchronous machine (salient pole)
The armature current on symmetrical 3 phase short circuit of a synchronous machine (salient pole) (A) has q -axis current only (B) has d -axis current only (C) has both d and q axis currents (D) cannot be divided between q and d axis currents
Last answer:
The armature current on symmetrical 3 phase short circuit of a synchronous machine (salient pole) has d -axis current only
armature
current
symmetrical
phase
short
circuit
synchronous
machine
salient
pole
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112
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1
answer
asked
Apr 30, 2018
by
anonymous
A current controlled voltage source is equivalent to :
A current controlled voltage source is equivalent to : (A) series voltage feed -back amplifier (B) shunt current feed -back amplifier (C) shunt voltage feed -back amplifier (D) series current feed -back amplifier
Last answer:
A current controlled voltage source is equivalent to : shunt voltage feed -back amplifier
current
controlled
voltage
source
equivalent
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66
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1
answer
asked
Mar 24, 2018
by
anonymous
The r.m.s. value of a sinusoidal A.C. current is equal to its value at an angle of______degrees.
The r.m.s. value of a sinusoidal A.C. current is equal to its value at an angle of______degrees.
Last answer:
The r.m.s. value of a sinusoidal A.C. current is equal to its value at an angle of 45 degrees.
rms
sinusoidal
ac
current
value
angle
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472
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1
answer
asked
Mar 25, 2018
by
anonymous
Heat in a conductor is produced on the passage of electric current due to?
Heat in a conductor is produced on the passage of electric current due to?
Last answer:
Heat in a conductor is produced due to frictional collision of electrons flow as they conduct current.
heat
conductor
electric
current
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184
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1
answer
asked
May 8, 2018
by
anonymous
If the % reactance upto the fault point is 20%, then the short circuit current will be
If the % reactance upto the fault point is 20%, then the short circuit current will be
Last answer:
If the % reactance upto the fault point is 20%, then the short circuit current will be 5 times the full load current
reactance
fault
point
short
circuit
current
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2.6k
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1
answer
asked
Mar 25, 2018
by
anonymous
When one leg of parallel circuit is opened out the total current will?
When one leg of parallel circuit is opened out the total current will?
Last answer:
When one leg of parallel circuit is opened out the total current will decrease.
parallel
circuit
current
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196
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1
answer
asked
Mar 25, 2018
by
anonymous
Electric current passing through the circuit produces?
Electric current passing through the circuit produces?
Last answer:
Electric current passing through the circuit produces thermal effect.
electric
current
circuit
produces
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74
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1
answer
asked
Feb 18, 2018
by
anonymous
Give the circuit analysis of current source inverter with resistive load.
Give the circuit analysis of current source inverter with resistive load. What are the main difference between voltage source inverter and current source inverter?
Last answer:
Current source inverter (CSI): In current source inverter, the output current is independent of load. The input current of current source inverter is constant. Current source converter converts DC input current to ... are connected in parallel. In CSI diodes are connected in series.
difference
between
vsi
csi
current
source
inverter
analysis
resistive
load
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328
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1
answer
asked
Nov 23, 2017
by
James
why is it that when the frequency of a voltage in an inductor increases current decreases?
A sine wave voltage is applied across an inductor. When the frequency of the voltage is decreased, the current decreases.
Last answer:
The question seems to be wrong. Increase in frequency would actually decrease the current through the Inductor. This happens because inductive reactance Xl is directly proportional to frequency. And if frequency increases the value of Xl would ... vice versa. Xl= 2*pi*f*L I=E/Z Z=sqrt(R^2+Xl^2)
frequency-voltage-
current
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69
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1
answer
asked
Mar 15, 2018
by
anonymous
What happens to the resistance when the current increases?
What happens to the resistance when the current increases?
Last answer:
Resistance reduces when current increases.
resistance
current
increases
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78
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1
answer
asked
Oct 30, 2017
by
Niloy
Which is the reason to electrical shock voltage/current?
Electrical shock happens for voltage/current?
Last answer:
The severity ofelectric shockdepends on thecurrentflowing through the body, which is a function of the electromotive force (E) involts, and the contact resistance (R) in ohms.
voltage
current
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1
answer
asked
Apr 30, 2018
by
anonymous
The skin effect in conductors is due to non uniform distribution of current in it and major portion of current is
The skin effect in conductors is due to non uniform distribution of current in it and major portion of current is near the _______ of conductor. (1) Surface (2) Center (3) Complete cross section area (4) Axis
Last answer:
The skin effect in conductors is due to non uniform distribution of current in it and major portion of current is near the Surface of conductor.
skin
effect
conductors
uniform
distribution
major
portion
current
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181
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1
answer
asked
Dec 5, 2017
by
bhanuprakash
according to ohms law voltage directly proportional to current but it is reverse in transformer why?
About trnsformer
Last answer:
Acc to Ohms law V=IR but it is only applicable when our resistance R is constant, as in case of transformer we take impedence which is equivalent to resistance is not constant it varies with system parameters that why Ohms law not applicable in case of transformer
voltage
current
power
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1
answer
asked
Apr 29, 2018
by
anonymous
Which of the following theorems enables a number of voltage (or current) source to be combined directly into
Which of the following theorems enables a number of voltage (or current) source to be combined directly into a single voltage (or current) source. (1) compensation theorem (2) reciprocity theorem (3) superposition theorem (4) Millman's theorem
Last answer:
Which of the following theorems enables a number of voltage (or current) source to be combined directly into a single voltage (or current) source. (1) compensation theorem (2) reciprocity theorem (3) superposition theorem (4) Millman's theorem
theorems
voltage
current
source
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100
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1
answer
asked
Apr 28, 2018
by
anonymous
The sequence components of current of a single-phase load connected to a 3-phase system are
The sequence components of current of a single-phase load connected to a 3-phase system are (A) equal positive and negative sequence components (B) equal positive, negative and zero sequence components (C) vector sum of sequence currents is zero (D) algebraic sum of sequence currents is zero
Last answer:
The sequence components of current of a single-phase load connected to a 3-phase system are equal positive, negative and zero sequence components
sequence
components
current
single-phase
load
connected
3-phase
system
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394
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1
answer
asked
Apr 28, 2018
by
anonymous
A network is said to be under resonance when the voltage and the current at the network input terminals are
A network is said to be under resonance when the voltage and the current at the network input terminals are (A) in phase (B) out of phase (C) in phase quadrature (D) in phase, and have equal magnitudes
Last answer:
A network is said to be under resonance when the voltage and the current at the network input terminals are in phase
resonance
voltage
current
network
input
terminals
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63
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1
answer
asked
Mar 25, 2018
by
anonymous
When electric current passes through a metallic conductor, its temperature rises. This is due to?
When electric current passes through a metallic conductor, its temperature rises. This is due to?
Last answer:
When electric current passes through a metallic conductor, its temperature rises. This is due to collisions between conduction electrons and atoms.
electric
current
metallic
conductor
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79
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1
answer
asked
Mar 20, 2018
by
anonymous
When a conductor carries more current on the surface as compared to core, it is due to?
Last answer:
When a conductor carries more current on the surface as compared to core, it is due to skin effect.
conductor
carries
more
current
surface
compared
to
core
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116
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1
answer
asked
Sep 6, 2018
by
anonymous
List out any four effects of electric current used in measuring instruments & write name of meter working on it.
List out any four effects of electric current used in measuring instruments & write name of meter working on it.
Last answer:
Effects of Electric Current used in measuring instruments: 1. Magnetic Effect: PMMC and Moving Iron type Ammeters, voltmeter and Dynamometer type wattmeters etc. 2. Electromagnetic induction ... . Electrostatic effect: Voltmeters. 5. Hall Effect: Flux meter, Poynting vector wattmeter.
electric
current
measuring
instruments
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375
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1
answer
asked
May 8, 2018
by
anonymous
Which of the following is the least expensive protection for over current in low voltage system?
Which of the following is the least expensive protection for over current in low voltage system? (A) Rewireable fuse (B) Isolator (C) Oil Circuit breaker (D) Air break circuit breaker
Last answer:
Which of the following is the least expensive protection for over current in low voltage system? (A) Rewireable fuse (B) Isolator (C) Oil Circuit breaker (D) Air break circuit breaker
over
current
low
voltage
system
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156
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1
answer
asked
Mar 25, 2018
by
anonymous
In the case of an unsymmetrical alternating current the average value must always be taken over?
In the case of an unsymmetrical alternating current the average value must always be taken over?
Last answer:
In the case of an unsymmetrical alternating current the average value must always be taken over the whole cycle.
unsymmetrical
alternating
current
average
value
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106
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1
answer
asked
Mar 14, 2018
by
anonymous
What happens when you reverse the direction of the current in an electromagnet?
What happens when you reverse the direction of the current in an electromagnet?
Last answer:
When you reverse current direction in an electromagnet, the magnetic poles will also change.
reverse
direction
current
electromagnet
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78
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1
answer
asked
Mar 11, 2018
by
anonymous
Why do we use AC current in our homes?
Why do we use AC current in our homes?
Last answer:
We used it for cooking rice, For washing clothes and for lights in the house.
use
ac
current
homes
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174
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3
answers
asked
Oct 3, 2017
by
anonymous
why current flows in opposite direction of electrons ?
why current flows in opposite direction of electrons?
Last answer:
Hi team, the current flow is nothing but flow of electrons But the conventional direction I'd opposite to actual current flow . ..
current
flows
opposite
direction
electrons
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89
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1
answer
asked
Aug 25, 2019
by
anonymous
Does current flow through a capacitor ?
Does current flow through a capacitor ?
Last answer:
Imagine a pipe with a flexible diaphram in the middle separating two haves of the pipe. Now the pipe is filled with air. If you apply a pressure to one end the diaphram will deform ... capacitor, the effects on electrons will be recreated across the boundary. But theres no electrical connection...
current
capacitor
flow
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79
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1
answer
asked
May 8, 2018
by
anonymous
A 1000Ohm, 1 Watt resistor can safely pass a current of
A 1000Ohm, 1 Watt resistor can safely pass a current of
Last answer:
A 1000 Ohm, 1 Watt resistor can safely pass a current of 30 mA
watt
resistor
safely
pass
current
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137
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1
answer
asked
May 3, 2018
by
anonymous
For a round wire, the approximate value of fusing current is given by
For a round wire, the approximate value of fusing current is given by
Last answer:
For a round wire, the approximate value of fusing current is given by K√d3
round
wire
value
fusing
current
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106
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1
answer
asked
Apr 29, 2018
by
anonymous
A network that consists of at least a voltage source or current source is called
A network that consists of at least a voltage source or current source is called A) Active network B) Ideal network C) Sourced network D) Outsourced network
Last answer:
A network that consists of at least a voltage source or current source is called Active network
network
voltage
source
current
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68
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1
answer
asked
Mar 25, 2018
by
anonymous
A ferrite core has less eddy current loss than an iron core because?
A ferrite core has less eddy current loss than an iron core because?
Last answer:
A ferrite core has less eddy current loss than an iron core because ferrites have high hysteresis.
ferrite
core
less
eddy
current
loss
iron
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281
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1
answer
asked
Mar 25, 2018
by
anonymous
The initial rate of rise of current through a coil of inductance 10 H when suddenly...
The initial rate of rise of current through a coil of inductance 10 H when suddenly connected to a D.C. supply of 200 V is_______Vs.
Last answer:
The initial rate of rise of current through a coil of inductance 10 H when suddenly connected to a D.C. supply of 200 V is 20 Vs
initial
rate
rise
current
coil
inductance
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155
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1
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asked
Mar 25, 2018
by
anonymous
The equation of 50 Hz current sine wave having r.m.s. value of 60 A is?
The equation of 50 Hz current sine wave having r.m.s. value of 60 A is?
Last answer:
(60*√2)Sin(2π*50*t)
equation
current
sine
wave
rms
value
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2
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