0
Which is the wire that alternates in potential in a mains circuit?
Wiki User
∙ 7y agoWant this question answered?
Be notified when an answer is posted
Add your answer:
Earn +20 pts
On a 110 voltage circuit where the white wire is common the black wire is normally?
The voltage potential supplying conductor.
What two wires touching causes a short circuit?
the red wire and the blue wire A touching of two wires coming from any potential power source will cause a short circuit Short circuit relates to the quickest path back to the source with out any resistance to the current flow.
Do you connect a fuse to the live wire or the neutral wire?
You connect the fuse to the live wire as it is the one with the potential difference of 220V and in case of short circuit current will blow out here
Can work wire for 100 amps use for 60 amps circuit?
If you have 100 amp wire, you can use it for a 60 amp circuit, or for any circuit of 100 amps or less. But if you have a 60 amp circuit, 60 amp wire is thinner and cheaper than 100 amp wire.
Which wire is the most dangerous in a plug?
The Active wire is always either Red (in a 3 core Red, Black and Green cable) or Brown (in a 3 core Brown, Blue and Green/Yellow cable). You can also be electrocuted by the neutral (Black or Blue) wire if the active is still supplying current through a device. The only truly safe way to handle mains wiring is to completely isolate the circuit at the fuse board.
Why are there 3 pins to the plug?
Because the mains supply has three wires. The Live wire (brown) is the power from the mains. The Neutral (blue) is the return to the mains (completing the circuit). The Earth (green/yellow stripe) - is the 'safety trip'.
What is the voltage reading of positive wire in 110V dc circuit?
You should be asking, 'What is the potential reading of a positive wire....?', as 'voltage' means 'potential difference' and you can't have a potential difference on a wire! The positive wire has a potential of +110 V with respect to the negative wire.Read more: What_is_the_voltage_reading_of_positive_wire_in_110V_dc
Why is the switch for an appliance always placed in the live wire?
If a switch was on the neutral wire the live wire would still be at the mains potential even when the switch was off. This would cause on en electric shock when one handles any conductor linked to the live wire
What causes wire to overheat in a high voltage circuit Is it unequal potential?
It's the current flowing in a wire that causes it to overheat.
On a 110 voltage circuit where the white wire is common the black wire is normally?
The voltage potential supplying conductor.
Does the neutral wire have a charge in a gfci circuit breaker?
No. Not if the GFCI is wired correctly. The neutral wire should always be cold, or at ground potential.
What part does a piece of wire play in an electrical circuit?
It is the component that brings the potential in the form of voltage to the load.
What is it called when a circuit that has only one path?
Electricity flows where there is a potential difference and some means of discharging that difference. A circuit is the loop of the thing causing the potential difference and the components that allow it to discharge. What seems to be confusing you is that the power source isn't always included in a circuit diagram. If you think in terms of a lighting circuit, the light comes on when the switch is closed. The part of the circuit inside your house only has the mains supply, some power switchgear, the light switch and the light. However, the circuit continues back through the supply cables to the generating station. Break the circuit at any point, in your house, under the street or a wire in the generator, and out goes the light.
What happens if wire insulation is weak?
Depending on the voltage potential that the wire is carrying, an insulation breakdown could lead to a short circuit. If this condition occurs then the circuits over current protection should trip the circuit off line.
How do you calculate appropriate circuit breaker in the circuit for ac voltages?
It is depending on : whether the ac power is 110 or 220 v , length of wire/cable from mains to CB(circuit breaker),diameter of wire/cable consumption of circuit ( How much watts the circuit consume) i.e load .. don't forget this relation I=V/R . where I= current (amps) , V=voltage & R= resistance also I=P/V where P is power in watts . note that less voltage or thinner wire may affect the real rating of CB
What two wires touching causes a short circuit?
the red wire and the blue wire A touching of two wires coming from any potential power source will cause a short circuit Short circuit relates to the quickest path back to the source with out any resistance to the current flow.
What is the purpose of using 3 different colour wires in an electric iron?
The live (blue) wire delivers the power from the mains into the iron's circuit. The neutral (brown) is the return path back to the mains (electricity needs a closed circuit to flow). The earth (green/yellow stripe) wire is a safety device in case anything goes wrong with the wiring in the iron to cause a short circuit. It delivers the power along the earth wire into the ground instead of it going through the user.The Iron would work without the earth wire being connected but the user would be at risk of electric shock if the iron developed a fault or the wires came loose.
