Discuss
menu
search
person
Login
Register
search
edit
Ask a Question
Discuss
All Activity
Q&A
Questions
Hot!
Unanswered
Tags
Ask a Question
Which color wire is neutral?
asked
Dec 22, 2017
by
anonymous
Which color wire is neutral?
color
wire
neutral
thumb_up_alt
6
like
thumb_down_alt
2
dislike
201
views
Please
log in
or
register
to add a comment.
Please
log in
or
register
to answer this question.
3
Answers
answered
Dec 22, 2017
by
Mamta paswan
Black
thumb_up_alt
2
like
thumb_down_alt
0
dislike
Please
log in
or
register
to add a comment.
answered
Dec 22, 2017
by
Jignesh
Black
thumb_up_alt
0
like
thumb_down_alt
0
dislike
Please
log in
or
register
to add a comment.
answered
Dec 23, 2017
by
James
Black but I think it depends with the place.
thumb_up_alt
0
like
thumb_down_alt
0
dislike
Please
log in
or
register
to add a comment.
← Prev Question
Next Question →
Related questions
asked
Aug 21, 2019
by
anonymous
What happens when a neutral wire touches a phase wire ?
What happens when a neutral wire touches a phase wire ?
Last answer:
Maximum current flow due to Short circuit, limited value of fuse will burn else apparatus and conductor will be damaged.
neutral
wire
touches
thumb_up_alt
0
like
thumb_down_alt
0
dislike
85
views
2
answers
asked
Aug 18, 2019
by
anonymous
Why should switch be connected only on the live wire and never on the neutral wire?
Why should switch be connected only on the live wire and never on the neutral wire?
Last answer:
Current runs from the transformer, through the protective device, through the load and back through the protective device (if on RCD). If the protective device is only a CB the current passes ... the circuit will operate correctly but this is an unsafe practice and does not meet the standards.
live
wire
thumb_up_alt
0
like
thumb_down_alt
0
dislike
68
views
5
answers
asked
Mar 25, 2018
by
anonymous
In a three-phase supply floating neutral is undesirable because it way give rise to?
In a three-phase supply floating neutral is undesirable because it way give rise to?
Last answer:
In a three-phase supply floating neutral is undesirable because it way give rise to unequal line voltages across the load.
three
phase
supply
floating
neutral
thumb_up_alt
0
like
thumb_down_alt
0
dislike
88
views
1
answer
asked
Mar 20, 2018
by
anonymous
Ungrounded neutral transmission system is not recommended because of system?
Last answer:
Ungrounded neutral transmission system is not recommended because of system insulation being overstressed due to over voltages, insulation overstress may lead to failure and subsequent phase to phase faults, being inadequately protected against ground fault.
ungrounded
neutral
transmission
system
thumb_up_alt
0
like
thumb_down_alt
0
dislike
50
views
1
answer
asked
Sep 20, 2018
by
anonymous
Explain the meaning of following terms: i) MCB ii) Socket outlet iii) Neutral iv) Fuse-link
Explain the meaning of following terms: i) MCB ii) Socket outlet iii) Neutral iv) Fuse-link
Last answer:
i) MCB: Miniature circuit breaker operates automatically at the time of fault or over load. And it is used for the protection of electrical installation. They are available from 0.5 A to 100 Amps. ... melts automatically at the time of fault or over load. Fuse must be replaced after the fault.
mcb
socket
outlet
neutral
fuse-link
thumb_up_alt
0
like
thumb_down_alt
0
dislike
99
views
1
answer
asked
Apr 28, 2018
by
anonymous
The magnetic neutral plane shifts in a dc machine
The magnetic neutral plane shifts in a dc machine (A) in the direction of motion of motor (B) in the direction of motion of generator (C) due to increase in the field flux (D) cause reduction of flash over between commutator segments
Last answer:
The magnetic neutral plane shifts in a dc machine in the direction of motion of generator
magnetic
neutral
plane
shifts
dc
machine
thumb_up_alt
0
like
thumb_down_alt
0
dislike
76
views
1
answer
asked
Apr 27, 2018
by
anonymous
To protect the power transformer (Y-Y with neutral grounded) against fault, what type of connection do the CTs have ?
To protect the power transformer (Y-Y with neutral grounded) against fault, what type of connection do the CTs have ?
Last answer:
To protect the power transformer (Y-Y with neutral grounded) against fault, what type of connection do the CTs have ? Δ-Δ connection
protect
power
transformer
neutral
grounded
fault
thumb_up_alt
0
like
thumb_down_alt
0
dislike
318
views
1
answer
asked
Mar 21, 2018
by
anonymous
In a D.C. generator the magnetic neutral axis coincides with the geometrical neutral axis, when?
Last answer:
In a D.C. generator the magnetic neutral axis coincides with the geometrical neutral axis, when there is no load on|he generator.
dc
generator
magnetic
neutral
geometrical
axis
thumb_up_alt
0
like
thumb_down_alt
0
dislike
124
views
1
answer
asked
Jan 16, 2018
by
bhanuprakash
If we conect a two bulbs in series And if we give double phase without neutral then bulb will glow or not??
Last answer:
Due to no potential difference between the ends of the circiut there is no existance of current
neutral
voltage
two
thumb_up_alt
0
like
thumb_down_alt
0
dislike
178
views
3
answers
asked
Apr 26, 2018
by
anonymous
lf the wire which is vertical to this page has electron flow downwards the conductor will have
lf the wire which is vertical to this page has electron flow downwards the conductor will have
Last answer:
lf the wire which is vertical to this page has electron flow downwards the conductor will have a counter-clockwise field in the plane of the paper
wire
vertical
page
electron
flow
downwards
conductor
thumb_up_alt
0
like
thumb_down_alt
0
dislike
141
views
1
answer
asked
Aug 18, 2019
by
anonymous
Which wire can carry a higher current stranded wire or solid wire?
Which wire can carry a higher current stranded wire or solid wire?
Last answer:
From the formula R=PL/A resistance rise with the fall of surface area ,inverse proportion relation between Resistance and Area ,so stranded wire has more area that a solid wire so more area less resistance. Less resistance/less electron flow opposition,more electron flow (current)
stranded
solid
wire
thumb_up_alt
0
like
thumb_down_alt
0
dislike
283
views
5
answers
asked
May 8, 2018
by
anonymous
The function of steel wire in ACSR conductors is
The function of steel wire in ACSR conductors is (A) To take care of surges. (B) To reduce corona. (C) To reduce inductance. (D) To provide additional mechanical strength
Last answer:
The function of steel wire in ACSR conductors is To provide additional mechanical strength
function
steel
wire
acsr
conductors
thumb_up_alt
0
like
thumb_down_alt
0
dislike
3.3k
views
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
thumb_up_alt
0
like
thumb_down_alt
0
dislike
107
views
1
answer
asked
Apr 29, 2018
by
anonymous
Aluminium is not used as winding wire for the armature of a dc machine because
Aluminium is not used as winding wire for the armature of a dc machine because (1) aluminium has low resistivity (2) a large winding space is taken by aluminium conductors and creates jointing problems (3) the thermal conductivity of aluminium is low (4) aluminium has low conductivity as compared to copper
Last answer:
Aluminium is not used as winding wire for the armature of a dc machine because (2) a large winding space is taken by aluminium conductors and creates jointing problems (3) the thermal conductivity of aluminium is low (4) aluminium has low conductivity as compared to copper
aluminium
winding
wire
armature
dc
machine
thumb_up_alt
0
like
thumb_down_alt
0
dislike
485
views
1
answer
asked
Mar 25, 2018
by
anonymous
Nichrome wire is an alloy of?
Nichrome wire is an alloy of?
Last answer:
Nichrome wire is an alloy of nickel and chromium.
nichrome
wire
alloy
thumb_up_alt
0
like
thumb_down_alt
0
dislike
52
views
1
answer
asked
Mar 25, 2018
by
anonymous
If a wire conductor of 0.2 ohm resistance is doubled in length, its resistance becomes?
If a wire conductor of 0.2 ohm resistance is doubled in length, its resistance becomes?
Last answer:
If a wire conductor of 0.2 ohm resistance is doubled in length, its resistance becomes 0.4 ohm.
wire
conductor
ohm
resistance
thumb_up_alt
0
like
thumb_down_alt
0
dislike
164
views
1
answer
asked
Mar 25, 2018
by
anonymous
The resistance of a few meters of wire conductor in closed electrical circuit is?
The resistance of a few meters of wire conductor in closed electrical circuit is?
Last answer:
The resistance of a few meters of wire conductor in closed electrical circuit is practically zero.
resistance
meters
wire
conductor
electrical
circuit
thumb_up_alt
0
like
thumb_down_alt
0
dislike
132
views
1
answer
asked
Mar 10, 2018
by
anonymous
What is ACCC wire?
What is ACCC wire?
Last answer:
Aluminum Conductor Composite Core
accc
wire
thumb_up_alt
0
like
thumb_down_alt
0
dislike
86
views
1
answer
asked
Mar 10, 2018
by
anonymous
How is electricity passed through a wire?
How is electricity passed through a wire?
Last answer:
A wire contains mobile electrons as majority charge carriers and holes as minority charge carriers when an emf or potential diffrence is provided , electrons flow in opposite direction with holes(convection current flow)
electricity
passed
wire
thumb_up_alt
0
like
thumb_down_alt
0
dislike
113
views
3
answers
asked
Sep 20, 2018
by
anonymous
State functions of ; i) Cable box ii) Guard wire iii) Shackle insulator iv) Stay wire used in service connection
State functions of ; i) Cable box ii) Guard wire iii) Shackle insulator iv) Stay wire used in service connection
Last answer:
i) Function of Cable box: To hold and inspect incoming and outgoing terminals ii) Function of Guard wire : A grounded conductor placed beneath an overhead transmission line in order to ground ... in service connection: To give mechanical Support to pole, line and prevent leakage current if any
cable
box
guard
wire
shackle
insulator
stay
used
service
connection
thumb_up_alt
0
like
thumb_down_alt
0
dislike
87
views
1
answer
asked
May 8, 2018
by
anonymous
A fuse wire should have :
A fuse wire should have : (A) Low specific resistance and high melting point (B) Low specific resistance and low melting point (C) High specific resistance and high melting point (D) High specific resistance and low melting point
Last answer:
A fuse wire should have : High specific resistance and low melting point
fuse
wire
thumb_up_alt
0
like
thumb_down_alt
0
dislike
90
views
1
answer
asked
May 8, 2018
by
anonymous
Increasing the number of turns of wire on the secondary of a transformer will
Increasing the number of turns of wire on the secondary of a transformer will (A) Decrease the secondary current (B) Increase the primary current (C) Have no effect on the secondary current (D) Increase the secondary current
Last answer:
Increasing the number of turns of wire on the secondary of a transformer will Decrease the secondary current
increasing
number
turns
wire
secondary
transformer
thumb_up_alt
0
like
thumb_down_alt
0
dislike
534
views
1
answer
asked
Mar 25, 2018
by
anonymous
Wire-wound resistors are unsuitable for use at high frequencies because they?
Wire-wound resistors are unsuitable for use at high frequencies because they?
Last answer:
Wire-wound resistors are unsuitable for use at high frequencies because they exhibit unwanted inductive and capacitive effects.
wire
wound
resistors
high
frequencies
thumb_up_alt
0
like
thumb_down_alt
0
dislike
111
views
1
answer
asked
Mar 22, 2018
by
anonymous
A trolley wire weighs 1.2 kg per meter length. The ends of the wire are attached to two poles 20 meters apart...
A trolley wire weighs 1.2 kg per meter length. The ends of the wire are attached to two poles 20 meters apart. If the horizontal tension is 1500 kg find the dip in the middle of the span?
Last answer:
A trolley wire weighs 1.2 kg per meter length. The ends of the wire are attached to two poles 20 meters apart. If the horizontal tension is 1500 kg find the dip in the middle of the span 4.0 cm.
trolley
wire
weighs
thumb_up_alt
0
like
thumb_down_alt
0
dislike
3.2k
views
1
answer
asked
Mar 21, 2018
by
anonymous
In order to achieve high accuracy, the slide wire of a potentiometer should be?
Last answer:
In order to achieve high accuracy, the slide wire of a potentiometer should be as long as possible.
slide
wire
potentiometer
thumb_up_alt
0
like
thumb_down_alt
0
dislike
142
views
1
answer
asked
Mar 20, 2018
by
anonymous
The ground wire should not be smaller than No ______ copper.
Last answer:
The ground wire should not be smaller than No 10 copper.
ground
wire
smaller
copper
thumb_up_alt
0
like
thumb_down_alt
0
dislike
121
views
1
answer
asked
Mar 14, 2018
by
anonymous
What happens when a current flows through a wire?
What happens when a current flows through a wire?
Last answer:
Current can produce two effect one is heating effect and second is magnetic effect.
current
flows
through
wire
thumb_up_alt
0
like
thumb_down_alt
0
dislike
87
views
2
answers
asked
Mar 10, 2018
by
anonymous
How do magnets and copper wire make electricity?
How do magnets and copper wire make electricity?
Last answer:
According to Faradays law , a changing magnetic field on a conductor induses current in the conductor through mutual induction.
magnets
copper
wire
make
electricity
thumb_up_alt
0
like
thumb_down_alt
0
dislike
145
views
1
answer
asked
May 14, 2018
by
anonymous
The color of wire recommended for earth connection as per BIS code is
The color of wire recommended for earth connection as per BIS code is
Last answer:
The color of wire recommended for earth connection as per BIS code is Green
thumb_up_alt
0
like
thumb_down_alt
0
dislike
75
views
1
answer
asked
16 hours
ago
by
anonymous
A wire carrying current is (1) positively charged (2) negatively charged (3) neutral (4) charged with a type depending upon current strength
A wire carrying current is (1) positively charged (2) negatively charged (3) neutral (4) charged with a type depending upon current strength
Last answer:
neutral
physics
thumb_up_alt
0
like
thumb_down_alt
0
dislike
2
views
1
answer
asked
2 days
ago
by
anonymous
When the main switch of the house is put off it disconnects the (1) live wire only (2) live wire and the earth wire (3) live wire and the neutral wire (4) earth wire and the neutral wire
When the main switch of the house is put off it disconnects the (1) live wire only (2) live wire and the earth wire (3) live wire and the neutral wire (4) earth wire and the neutral wire
Last answer:
live wire and the neutral wire
physics
thumb_up_alt
0
like
thumb_down_alt
0
dislike
8
views
1
answer
asked
May 12, 2018
by
anonymous
In a 3 phase, 4 wire unbalanced System, the current in the neutral wire is 18 A. The magnitude
In a 3 phase, 4 wire unbalanced System, the current in the neutral wire is 18 A. The magnitude of the zero sequence current is
Last answer:
In a 3 phase, 4 wire unbalanced System, the current in the neutral wire is 18 A. The magnitude of the zero sequence current is 6 A
thumb_up_alt
0
like
thumb_down_alt
0
dislike
185
views
1
answer
asked
Oct 15, 2018
by
anonymous
What is electrical circuit ?
What is electrical circuit ?
Last answer:
An electric circuit is the interconnection of electrical elements. Electrical elements like battery, lamp, wire etc.
electrical
circuit
thumb_up_alt
0
like
thumb_down_alt
0
dislike
94
views
1
answer
asked
Dec 22, 2017
by
anonymous
What is the EMF equation of the transformer?
What is the EMF equation of the transformer?
Last answer:
E1 =2(3.142)fN1 (flux)1E2 =2(3.142)fN2(flux)2
emf
equation
transformer
thumb_up_alt
3
like
thumb_down_alt
0
dislike
125
views
1
answer
asked
Dec 22, 2017
by
anonymous
What is difference between Star and Delta Connection?
What is difference between Star and Delta Connection?
Last answer:
Star is 1. Open ckt 2. At center point present neutral Delta is 1. Closed ckt 2. Neutral not present in this case
difference
between
star
delta
connection
thumb_up_alt
2
like
thumb_down_alt
0
dislike
127
views
1
answer
asked
Dec 22, 2017
by
anonymous
What is a three phase connection?
What is a three phase connection?
Last answer:
RYB, 440 volt/phase
three
phase
connection
thumb_up_alt
1
like
thumb_down_alt
0
dislike
99
views
1
answer
asked
Dec 22, 2017
by
anonymous
What is the voltage in 3 phase line?
What is the voltage in 3 phase line?
Last answer:
between 430 to 440 v
voltage
phase
line
thumb_up_alt
3
like
thumb_down_alt
0
dislike
256
views
4
answers
asked
Jan 9
by
anonymous
There are 2 vessels. 1st vessel contains 5white and 5 blue thread roll. 2nd vessel contains 4 white and 6 black thread roll. One roll is taken at random from first vessel and put to second vessel without noticing its color. Now a roll is chosen at random from 2nd vessel. What is the probability of the second roll being a white colored roll? A) 11/13 B) 9/11 C) 13/11 D) 5/12
There are 2 vessels. 1st vessel contains 5white and 5 blue thread roll. 2nd vessel contains 4 white and 6 black thread roll. One roll is taken at random from first vessel and put to second vessel without noticing its color. Now a roll is chosen at random from 2nd vessel. What is the probability of the second roll being a white colored roll? A) 11/13 B) 9/11 C) 13/11 D) 5/12
Last answer:
Answer: B) Case 1: first was a white roll Now it is put in second vessel, so total white rolls in second vessel = 4+1 = 5, and total rolls in second vessel = 10+1 = 11 So probability of white roll ... = 5/11+4/11 = 9/11 (added the cases because we want one of these cases to happen and not both)
probability
thumb_up_alt
0
like
thumb_down_alt
0
dislike
5
views
1
answer
asked
Aug 18, 2019
by
anonymous
Why cable outer sheath is black in color?
Why cable outer sheath is black in color?
Last answer:
There are cables with different colors, for example, red, orange, grey. PVC or HDPE, the plastics that the jacket of the cable is made of, have to be UV-stabilized. Carbon black is a common and cheapest additive for it purpose
cable
outer
sheath
thumb_up_alt
0
like
thumb_down_alt
0
dislike
662
views
5
answers
asked
May 14, 2018
by
anonymous
The resistance value of a carbon resistor having Orange, Red, Brown and Golden color bands is
The resistance value of a carbon resistor having Orange, Red, Brown and Golden color bands is
Last answer:
The resistance value of a carbon resistor having Orange, Red, Brown and Golden color bands is 320 Ω ± 5%
thumb_up_alt
0
like
thumb_down_alt
0
dislike
50
views
1
answer
asked
Nov 18, 2020
by
anonymous
What color are your eyes exactly?
What color are your eyes exactly?
thumb_up_alt
0
like
thumb_down_alt
0
dislike
37
views
0
answers
asked
May 14, 2018
by
anonymous
The gold color code in a resistor indicates a tolerance of
The gold color code in a resistor indicates a tolerance of
Last answer:
The gold color code in a resistor indicates a tolerance of 5%
thumb_up_alt
0
like
thumb_down_alt
0
dislike
58
views
1
answer
asked
Apr 12, 2018
by
anonymous
A resistor with the color coded value of 1000 ohms and ± 10% tolerance can have an actual resistance...
A resistor with the color coded value of 1000 ohms and ± 10% tolerance can have an actual resistance between ________. A. 990 ohm and 1010 ohm B. 900 ohm and 1100 ohm C. 1000 ohm and 1100 ohm D. 900 ohm and 1000 ohm.
Last answer:
A resistor with the color coded value of 1000 ohms and ± 10% tolerance can have an actual resistance between 900 ohm and 1100 ohm.
thumb_up_alt
0
like
thumb_down_alt
0
dislike
85
views
1
answer
asked
Jan 4, 2018
by
anonymous
What are the color codes on a resistor?
What are the color codes on a resistor?
Last answer:
black yellow gold red green blue
thumb_up_alt
3
like
thumb_down_alt
0
dislike
105
views
3
answers
asked
Sep 13, 2018
by
anonymous
Which type of flow is measured by hot wire anemometer and describe its working principle with suitable diagram.
Which type of flow is measured by hot wire anemometer and describe its working principle with suitable diagram.
Last answer:
Heat transfer flowmeters this type of flowmeter measures the rise in temperature of the fluid after a known amount of heat has been added to it. Its theory is based upon the specific heat equation ... a supply so as to maintain the wire temperature constant, when the amount of heat transfer varies
thumb_up_alt
0
like
thumb_down_alt
0
dislike
78
views
1
answer
asked
May 29, 2018
by
anonymous
What is the diameter of the GI pipe through which the earth wire needs to be taken out?
What is the diameter of the GI pipe through which the earth wire needs to be taken out?
Last answer:
13 mm diameter is the diameter of the GI pipe through which the earth wire needs to be taken out.
thumb_up_alt
0
like
thumb_down_alt
0
dislike
159
views
1
answer
asked
May 18, 2018
by
anonymous
The rms value of the current in a wire which carries a d.c. current of 10 A and a sinusoidal alternating current
The rms value of the current in a wire which carries a d.c. current of 10 A and a sinusoidal alternating current of peak value 20 A is (A) 10 A (B) 14.14 A (C) 15 A (D) 17.32 A
Last answer:
The rms value of the current in a wire which carries a d.c. current of 10 A and a sinusoidal alternating current of peak value 20 A is 17.32 A
thumb_up_alt
0
like
thumb_down_alt
0
dislike
67
views
1
answer
asked
May 15, 2018
by
anonymous
In a metal wire, which particle carries electric current?
In a metal wire, which particle carries electric current?
Last answer:
In a metal wire the particles responsible for carrying electric current are holes.
thumb_up_alt
0
like
thumb_down_alt
0
dislike
115
views
2
answers
asked
2 hours
ago
by
anonymous
Drinking soda is (1) Alkaline (2) Acidic (3) Neutral (4) Oxidant
Drinking soda is (1) Alkaline (2) Acidic (3) Neutral (4) Oxidant
Last answer:
Acidic
chemistry
thumb_up_alt
0
like
thumb_down_alt
0
dislike
2
views
1
answer
asked
5 hours
ago
by
anonymous
The fuse in an electric circuit is connected in (1) series with neutral (2) parallel to live (3) parallel to neutral (4) series with live
The fuse in an electric circuit is connected in (1) series with neutral (2) parallel to live (3) parallel to neutral (4) series with live
Last answer:
series with live
physics
thumb_up_alt
0
like
thumb_down_alt
0
dislike
2
views
1
answer
...