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Different materials are used between end...

Different materials are used between ends P and Q to complete the given circuit. The bulb does not glow when the ends P and Q are connected by

A

Gold bracelet

B

Copper wire

C

Aluminium foil

D

Cotton thread

Text Solution

Verified by Experts

The correct Answer is:
D
Cotton thread is a poor conductor of electricity. It does not allow current to pass through it. So, current does not flow in the closed circuit and hence the bulb does not glow.
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