SSC
PHYSICS
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Brown. Provides the alternating potential difference
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Blue. Completes the circuit and carries away current
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Green and Yellow. Only carries current when there is a fault
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None of the above
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Detailed explanation-1: -The wire covered in brown plastic is the live wire. This carries the 230 V alternating potential difference from the power supply. The wire covered in blue plastic is the neutral wire and this completes the circuit from the appliance back to the supply.
Detailed explanation-2: -Wiring Colour Codes The blue wire also referred to as the neutral wire, has the function of transferring electricity away from the appliance. The brown wire, otherwise known as the live wire, transfers electricity to the appliance. The combination of these wires is referred to as a circuit.
Detailed explanation-3: -The live wire has an alternating potential difference of around 230 V. The live wire is how the current enters a device. Neutral wire (blue). This wire completes the circuit.
Detailed explanation-4: -The potential difference maintained between the live wire and neutral wire in India is 220 V.