To replace a copper strip in a circuit, which among the following should we use to complete the circuit?
A
Wood
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B
Rubber
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C
Plastic
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D
Silver
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Solution
The correct option is D Silver Silver and copper are good conductors of electricity and allow electricity to pass through them easily. So, we can use silver strip instead of copper strip in a circuit. However, plastic and wood are poor conductors of electricity and do not allow electric current to pass through them easily. Hence, they cannot be used to replace copper.