Think of six activities which use electric current
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(a) A device that is used to break an electric circuit is called a switch.
Switch:
A switch is an electric device that is used to break a circuit. When the switch is in ‘OFF’ position, then the circuit is not complete. Then, the circuit is called an open circuit. An electric current cannot flow through this circuit.
(b) An electric cell has two terminals.
Two terminals:
An electric cell has two terminals, a negative terminal and a positive terminal (as shown in the given figure).
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Explanation:
No, it can't be covered with aluminum foil as aluminium is a conductor of electricity and we may get electric shock whereas plastic is a bad conductor of electricity so it is used to cover wires.
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