Discuss
menu
search
person
Login
Register
search
edit
Ask a Question
Discuss
All Activity
Q&A
Questions
Hot!
Unanswered
Tags
Ask a Question
Recent questions tagged circuits
asked
Jan 7
by
anonymous
Find the Norton equivalent resistance for the network shown in Fig No. 2
Last answer:
Solution: To find Norton’s equivalent resistance removing voltage source and current source. Voltage source is replaced by short circuit and current source is replaced by open circuit so, we get circuit as
electric
circuits
network
thumb_up_alt
0
like
thumb_down_alt
0
dislike
3
views
1
answer
asked
Jan 7
by
anonymous
Use mesh analysis to calculate ammeter current in Fig No. 1
Last answer:
Solution:
electric
circuits
network
thumb_up_alt
0
like
thumb_down_alt
0
dislike
5
views
1
answer
asked
Jan 7
by
anonymous
An a.c series circuit has resistance of 10ohm, inductance of 0.1H and capacitance of 10µf, voltage applied to circuit is 200V. find (i) Resonant frequency (ii) Current at resonance (iii) Power at resonance
An a.c series circuit has resistance of 10ohm, inductance of 0.1H and capacitance of 10µf, voltage applied to circuit is 200V. find (i) Resonant frequency (ii) Current at resonance (iii) Power at resonance
Last answer:
Solution: For RLC series circuit
electric
circuits
network
thumb_up_alt
0
like
thumb_down_alt
0
dislike
3
views
1
answer
asked
Jan 7
by
anonymous
Two unpedauces given by Z1 = 10 + j5 and Z2 = 8 + j9 are joined in parallel and connected across a voltage of V = 200 + j0. Calculate the circuit current and branch currents. Draw the vector diagram.
Two unpedauces given by Z1 = 10 + j5 and Z2 = 8 + j9 are joined in parallel and connected across a voltage of V = 200 + j0. Calculate the circuit current and branch currents. Draw the vector diagram.
Last answer:
Solution: Given, Z1=10+j5, Z2=8+j9, V=200+j0
electric
circuits
network
thumb_up_alt
0
like
thumb_down_alt
0
dislike
2
views
1
answer
asked
Jan 7
by
anonymous
A series combination of resistance 100 ohm and capacitance 50µf is connected in series to a 230 V, 50HZ supply. Calculate (i) Capacitive reactance (ii) Current (iii) Power factor (iv) Power consumed
A series combination of resistance 100 ohm and capacitance 50µf is connected in series to a 230 V, 50HZ supply. Calculate (i) Capacitive reactance (ii) Current (iii) Power factor (iv) Power consumed
Last answer:
For RC series circuit
electric
circuits
network
thumb_up_alt
0
like
thumb_down_alt
0
dislike
3
views
1
answer
asked
Jan 7
by
anonymous
State super position theorem. Write steps to find current in an element using super position theorem.
State super position theorem. Write steps to find current in an element using super position theorem.
Last answer:
Statement of superposition theorem: In any linear network containing two or more sources, the current in any element is equal to algebraic sum of the current caused by individual source acting ... . Add algebraically the voltage drops and branch currents to obtain combined effect of all sources.
electric
circuits
network
thumb_up_alt
0
like
thumb_down_alt
0
dislike
4
views
1
answer
asked
Jan 7
by
anonymous
Derive an expression for delta to star transformation.
Derive an expression for delta to star transformation.
Last answer:
For delta network the resistance between the terminals 1 and 2 consists of R12 in parallel with (R23+R31) Hence ,the resistance between the terminals 1 and 2 is In case of star network the ... equation( ii) from( i),we get Adding equations (iii) and( iv),we have
electric
circuits
network
thumb_up_alt
0
like
thumb_down_alt
0
dislike
7
views
1
answer
asked
Jan 7
by
anonymous
Derive an expression for resonant frequency of series RLC circuit.
Derive an expression for resonant frequency of series RLC circuit.
Last answer:
At resonance frequency in RLC series circuit, we have inductive reactance is equal to capacitive reactance i.e. Where fr is the resonant frequency in RLC series circuit.
electric
circuits
network
thumb_up_alt
0
like
thumb_down_alt
0
dislike
9
views
1
answer
asked
Jan 7
by
anonymous
Explain the concept of initial and final conditions in switching circuits for elements R and L.
Explain the concept of initial and final conditions in switching circuits for elements R and L.
Last answer:
Concept of Initial and final condition in switching circuits for R: Consider a resistor is connected to a voltage source, using a switch as shown in fig below The switch is closed ... of value Io in parallel with short circuit.(I0 is the current in inductor just before switching)
electric
circuits
network
thumb_up_alt
0
like
thumb_down_alt
0
dislike
6
views
1
answer
asked
Jan 7
by
anonymous
Explain the suitable example to convert a practical current source into equivalent voltage source.
Explain the suitable example to convert a practical current source into equivalent voltage source.
Last answer:
The open- circuit voltage across terminals A and B is Voc = drop across R =5x2=10V Hence, voltage source has a voltage of 10V and the same resistance of 2Ω
electric
circuits
network
thumb_up_alt
0
like
thumb_down_alt
0
dislike
9
views
1
answer
asked
Jan 7
by
anonymous
Compare series and parallel resonance on the basis of (i) Resonating frequency (ii) Impedance (iii) Current (iv) Magnification
Compare series and parallel resonance on the basis of (i) Resonating frequency (ii) Impedance (iii) Current (iv) Magnification
Last answer:
S. No . Parameter Series Circuit Parallel Circuit 1 Resonating frequency 2 Impedance Minimum, Z = R Maximum, Z = L/CR 3 Current Maximum, I ... , I = V/(L/CR) 4 Magnification Voltage magnification takes place Current magnification takes place
electric
circuits
network
thumb_up_alt
0
like
thumb_down_alt
0
dislike
4
views
1
answer
asked
Jan 7
by
anonymous
For R-C series circuit draw (i) Circuit diagram (ii) Vector diagram (iii) Waveform of voltage and current
For R-C series circuit draw (i) Circuit diagram (ii) Vector diagram (iii) Waveform of voltage and current
Last answer:
i) Circuit diagram ii)Vector diagram iii)Waveform of voltage and current
electric
circuits
network
thumb_up_alt
0
like
thumb_down_alt
0
dislike
4
views
1
answer
asked
Jan 7
by
anonymous
Write equation of short circuit Y parameters.
Write equation of short circuit Y parameters.
Last answer:
The equation of short circuit Y parameters.
electric
circuits
network
thumb_up_alt
0
like
thumb_down_alt
0
dislike
3
views
1
answer
asked
Jan 7
by
anonymous
State maximum power transfer theorem.
State maximum power transfer theorem.
Last answer:
Maximum Power Transfer Theorem states that “Maximum power is transferred from the source to the load when the load resistance is equal to the Thevenin’s equivalent resistance of the given circuit as seen from load terminals” i. e, RL = RTH
electric
circuits
network
thumb_up_alt
0
like
thumb_down_alt
0
dislike
4
views
1
answer
asked
Jan 7
by
anonymous
Draw – (i) Practical voltage source (ii) Ideal current source
Draw – (i) Practical voltage source (ii) Ideal current source
Last answer:
i) Practical voltage source ii) Ideal current source Where, Is = Current Source Rs = internal resistance of source
electric
circuits
network
thumb_up_alt
0
like
thumb_down_alt
0
dislike
8
views
1
answer
asked
Jan 7
by
anonymous
State condition for resonance in R-L-C series circuit.
State condition for resonance in R-L-C series circuit.
Last answer:
The condition for resonance in R-L-C series circuit. i) Inductive Reactance should be equal to capacitive reactance. That is XL = XC ii) The power factor of the circuit is Cos ɸ = 1 iii)The voltage and ... and given by I =V/R. v)Impedance of the circuit is minimum and given by Z =R.
electric
circuits
network
thumb_up_alt
0
like
thumb_down_alt
0
dislike
4
views
1
answer
asked
Jan 7
by
anonymous
Write equation of resultant impedance in R-L circuit.
Write equation of resultant impedance in R-L circuit.
Last answer:
The equation of resultant impedance in R-L circuit
electric
circuits
network
thumb_up_alt
0
like
thumb_down_alt
0
dislike
5
views
1
answer
asked
Jan 7
by
anonymous
Define: (i) Apparent power (ii) Real power
Define: (i) Apparent power (ii) Real power
Last answer:
(i) Apparent power It is the product of rms values of applied voltage and circuit current. Unit: volt-ampere (VA) OR kilo-volt-ampere (kVA) OR Mega-volt-ampere (MVA) S = VI = I2 Z volt ... circuit. (OR) It is the power which is actually dissipated in the circuit resistance.
electric
circuits
network
thumb_up_alt
0
like
thumb_down_alt
0
dislike
3
views
1
answer
asked
May 5, 2020
by
anonymous
Why is it necessary to keep air gaps in magnetic circuits as small as possible?
Why is it necessary to keep air gaps in magnetic circuits as small as possible?
air
gaps
in
magnetic
circuits
as
small
possible
thumb_up_alt
0
like
thumb_down_alt
0
dislike
39
views
0
answers
asked
Apr 27, 2020
by
anonymous
Explain with neat diagram series and parallel magnetic circuits.
Explain with neat diagram series and parallel magnetic circuits.
Last answer:
Series magnetic circuit: When different magnetic materials having different lengths, cross sectional areas and permeability are connected one after another, in which same flux is established in different sections, then it is called series ... flux, Φ = Φ1 + Φ2 Path 1: BAFE Path 2: BACD
diagram
series
parallel
magnetic
circuits
thumb_up_alt
0
like
thumb_down_alt
0
dislike
61
views
1
answer
asked
Apr 26, 2020
by
anonymous
Series Magnetic Circuits
Series Magnetic Circuits
series
magnetic
circuits
thumb_up_alt
1
like
thumb_down_alt
0
dislike
32
views
0
answers
asked
Feb 5, 2020
by
anonymous
How to solve circuits with a complex numbers
circuits
thumb_up_alt
0
like
thumb_down_alt
0
dislike
53
views
0
answers
asked
Jul 21, 2019
by
anonymous
Compare Asynchronous sequential and synchronous sequential circuits.
Compare Asynchronous sequential and synchronous sequential circuits.
Last answer:
SR. NO. ASYNCHRONOUS SEQUENTIAL CIRCUIT SYNCHRONOUS SEQUENTIAL CIRCUITS. 1 Output can be changed at any instant of time by changing the input Output changes at discrete ... the counter change state simultaneously. This is because all the flip-flops are clocked simultaneously.
asynchronous
sequential
synchronous
circuits
thumb_up_alt
0
like
thumb_down_alt
0
dislike
38
views
1
answer
asked
Jun 11, 2019
by
anonymous
Series rc circuits
Series rc circuits
Last answer:
Series rc circuits
series
rc
circuits
thumb_up_alt
0
like
thumb_down_alt
0
dislike
73
views
1
answer
asked
May 26, 2019
by
anonymous
Circuits with XL Alone
Circuits with XL Alone
Last answer:
Circuits with XL Alone X L values in series let two inductive reactances X L 1 and X L 2 are connected in series and has value 50 ohm and 50 ohm respectively. 100 volts A C ... phasor. And it is taken horizontal. Phase angle between inductive current and voltage is same 90 degree.
circuits
with
xl
alone
inductive
reactance
thumb_up_alt
0
like
thumb_down_alt
0
dislike
65
views
1
answer
asked
May 26, 2019
by
anonymous
AC Circuits with Resistance but No Reactance
AC Circuits with Resistance but No Reactance
Last answer:
AC Circuits with Resistance but No Reactance AC Circuits with Resistance but No Reactance Series resistances let two resistances R 1 and R 2 are connected in series as shows in figure and there ... voltage. Voltage V A is common to both the branch hence voltage V A is common reference.
ac
circuits
with
resistance
but
no
reactance
thumb_up_alt
0
like
thumb_down_alt
0
dislike
68
views
1
answer
asked
May 21, 2019
by
anonymous
Nodal Analysis of Electric Circuits Example
Nodal Analysis of Electric Circuits Example
Last answer:
Nodal Analysis of Electric Circuits Example 1 : https://youtu.be/XLS6kDQuHj0 Nodal Analysis of Electric Circuits Example 2 : https://youtu.be/OFhurvl74bA Nodal Analysis of Electric Circuits ... youtu.be/GmOozdjTVtM Nodal Analysis of Electric Circuits Example 9 : https://youtu.be/KjgfjJ7Ubb8
nodal
analysis
of
electric
circuits
example
thumb_up_alt
0
like
thumb_down_alt
0
dislike
64
views
1
answer
asked
Sep 7, 2018
by
anonymous
What is the need of polarity marking in polyphase AC circuits?
What is the need of polarity marking in polyphase AC circuits?
Last answer:
Need of Polarity Marking in Polyphase AC Circuits: i) Polarity marking of terminals provides reference polarity for better understanding of system, even if the polarity of ac voltage changes ... of current transformers in relay protection circuit and getting desired performance is very difficult.
polarity
marking
polyphase
ac
circuits
thumb_up_alt
0
like
thumb_down_alt
0
dislike
78
views
1
answer
asked
Sep 6, 2018
by
anonymous
State superposition theorem applied to D.C. circuits.
State superposition theorem applied to D.C. circuits.
Last answer:
Superposition Theorem applied to D.C. circuits: Superposition theorem states that in any linear, bilateral, multisource network, the response (voltage across any element or current through any ... each source acting alone, while the other sources are replaced by their internal resistances.
state
superposition
theorem
dc
circuits
thumb_up_alt
0
like
thumb_down_alt
0
dislike
2.6k
views
1
answer
asked
Sep 5, 2018
by
anonymous
State two advantages of digital circuits.
State two advantages of digital circuits.
Last answer:
Advantages of Digital Circuits: i) Digital circuits are easier to design. ii) Information storage is easy. iii) Accuracy and precision are greater. iv) Less affected by noise. v) Reliability is more
advantages
digital
circuits
thumb_up_alt
0
like
thumb_down_alt
0
dislike
56
views
1
answer
asked
Jun 18, 2018
by
anonymous
Which of the following circuits converts any arbitrary waveform into square waveform?
Which of the following circuits converts any arbitrary waveform into square waveform? A) Hartley oscillator B) Schmitt trigger C) Differentiator D) RC phase shift oscillator
Last answer:
Which of the following circuits converts any arbitrary waveform into square waveform? A) Hartley oscillator B) Schmitt trigger C) Differentiator D) RC phase shift oscillator
circuits
converts
arbitrary
waveform
square
thumb_up_alt
0
like
thumb_down_alt
0
dislike
60
views
1
answer
asked
Apr 29, 2018
by
anonymous
Which of the following is true at resonance in LC circuits?
Which of the following is true at resonance in LC circuits? A) The series impedance of the two elements is at a maximum and the parallel impedance is at minimum B) The series impedance of the two elements is at a maximum and the parallel impedance is also at maximum C) The series impedance of the two elements is at a minimum and the parallel impedance is also at minimum D) The series impedance of the two elements is at a minimum and the parallel impedance is at maximum
Last answer:
Which of the following is true at resonance in LC circuits? A) The series impedance of the two elements is at a maximum and the parallel impedance is at minimum B) The series impedance of ... D) The series impedance of the two elements is at a minimum and the parallel impedance is at maximum
resonance
lc
circuits
thumb_up_alt
0
like
thumb_down_alt
0
dislike
47
views
1
answer
asked
Apr 26, 2018
by
anonymous
Asynchronous circuits are usually faster than synchronous circuits because
Asynchronous circuits are usually faster than synchronous circuits because
Last answer:
Asynchronous circuits are usually faster than synchronous circuits because they are free running and do not depend on the frequency of the clock
asynchronous
circuits
faster
synchronous
thumb_up_alt
0
like
thumb_down_alt
0
dislike
67
views
1
answer
asked
Mar 25, 2018
by
anonymous
An air gap is usually inserted in magnetic circuits to?
An air gap is usually inserted in magnetic circuits to?
Last answer:
An air gap is usually inserted in magnetic circuits to prevent saturation.
air
gap
magnetic
circuits
thumb_up_alt
0
like
thumb_down_alt
0
dislike
64
views
1
answer
asked
Mar 25, 2018
by
anonymous
In AC. circuits, laminated iron is invariably used in order to?
In AC. circuits, laminated iron is invariably used in order to?
Last answer:
In AC. circuits, laminated iron is invariably used in order to reduce eddy current loss.
ac
circuits
laminated
iron
thumb_up_alt
0
like
thumb_down_alt
0
dislike
75
views
1
answer
asked
Mar 11, 2018
by
anonymous
What is the need for electrically isolated drive circuits?
What is the need for electrically isolated drive circuits?
electrically
isolated
drive
circuits
thumb_up_alt
0
like
thumb_down_alt
0
dislike
56
views
0
answers
asked
Mar 11, 2018
by
anonymous
Explain transformer isolated drive circuits providing both signal and power.
Explain transformer isolated drive circuits providing both signal and power.
transformer
isolated
drive
circuits
signal
power
thumb_up_alt
0
like
thumb_down_alt
0
dislike
71
views
0
answers
asked
Mar 10, 2018
by
anonymous
Explain different gate drives techniques with base circuits and key features.
Explain different gate drives techniques with base circuits and key features.
different
gate
drives
techniques
base
circuits
key
features
thumb_up_alt
0
like
thumb_down_alt
0
dislike
539
views
0
answers
asked
Mar 8, 2018
by
anonymous
Which capacitors are suitable for DC filter circuits?
Which capacitors are suitable for DC filter circuits?
Last answer:
Electrolytic capacitors are suitable for DC filter circuits.
capacitors
dc
filter
circuits
thumb_up_alt
0
like
thumb_down_alt
0
dislike
56
views
1
answer
To see more, click for the
full list of questions
or
popular tags
.
Install Now
...