| (i) How is the electric appliance, if earthed, safe? |
| (ii) What determines the thickness of the main live wire in your household? |
Answer:
(i) Sometimes, due to faulty wires, the insulation breaks and the live wire comes in contact with the body of the appliance. If the appliance is earthed, the charge flows to the earth and protects us from electric shock. (ii) The maximum value of current is determined by the thickness of the main live wire.
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