In a 'three pin plug', why is the earth pin made longer and thicker than other pins ?

For proper electrical position

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Solution

The correct option is A For proper electrical position
Its longer than the other two pins because when you insert the plug,the earth pin will first come in contact with the power supply before the other two(live and neutral) so that any unwanted charges which may be in the circuit will be removed(grounded) before the other two pins go inside the terminals.This ensures that you connect the earth first which increases your safety in the event of an equipment fault.

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Similar questions

In a three-pin plug, the pin made longer and thicker than the other two pins is

The diagram is Fig. 9.26 shown a three pin plug. Label the three pins.

(a) Why is the top pin thicker and longer than the other two ?

(b) Why are the pins splitted at the ends ?

Why the third pin of a 3 pin plug is longer and thicker?

Why is the earth pin thicker and longer than the live and the neutral pins?

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