Physics
Grade-9
Easy
Question
A safety device protects the user from getting a shock
- By switching off supply when a user accidently meets earth wire
- By switching off supply when a user accidently meets neutral wire
- By switching off supply when a user accidently meets live wire
- By switching off supply when a user accidently meets live and earth wire
Hint:
By switching off the supply
The correct answer is: By switching off supply when a user accidently meets live wire
- A safety device protects the user from getting a shock, by switching off supply when a user accidently meets live wire.
- For example - MCB
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