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Which one of the following statements is not true? a) In a house circuit, lamps are used in parallel b) Switches, fuses, and circuit breakers should be placed in the neutral wire c) An electric iron has its earth wire connected to the metal case to prevent the user receiving a shock d) When connecting a three-core cable to a 13A three-pin plug, the red wire goes to the live pin
Which one of the following statements is not true?
a) In a house circuit, lamps are used in parallel
b) Switches, fuses, and circuit breakers should be placed in the neutral wire
c) An electric iron has its earth wire connected to the metal case to prevent the user receiving a shock
d) When connecting a three-core cable to a 13A three-pin plug, the red wire goes to the live pin
CBSE | Class 10 | Lakhmir Singh | Magnetic Effects of Electric Current | Physics
Which one of the following statements is not true?
a) In a house circuit, lamps are used in parallel
b) Switches, fuses, and circuit breakers should be placed in the neutral wire
c) An electric iron has its earth wire connected to the metal case to prevent the user receiving a shock
d) When connecting a three-core cable to a 13A three-pin plug, the red wire goes to the live pin

Answer:

The correct option is b) switches, fuses, and circuit breakers should be placed in the neutral wire

They should not be attached to the neutral wire because if they are, they would all burn up when the circuit is overloaded and the current stops flowing, but the appliance remains connected to the high potential point via the live wire. Now, if someone touches the device, they will get a shock because they will be touching a live wire.

i

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