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A semiconducting device is connected in ...

A semiconducting device is connected in a series circuit with a battery and a resistance.A current is found to pass through the circuit .If the polarity of the battery is reversed, the current drops to almost zero.The device may be

A

A `P`-type semiconductor

B

An `N` -type semiconductor

C

A `P-N` juction

D

An intrinsic semiconductor

Text Solution

Verified by Experts

The correct Answer is:
C
When polarity of the battery is reversed, the `P-N` junction becomes reverse biased so no current flows.
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