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1. How charges are produced by friction?
a. Friction generates
b. Due to friction, hair charges are transmitted from the when combing.
2. What is earthing?
a. Earthing is the process of connecting an electrical circuit's exposed metal elements to the .
b. To provide the least resistance path for fault current leakage, earthing cable is utilized.
3. What is electric circuit?
a. The constitutes electric current in a circuit.
b. The SI unit of electric current is .
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