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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 beA. A P-type semiconductorB. An N-type semiconductorC. A PN-junctionD. An intrinsic semiconductor |
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Answer» Correct Answer - C When polarity of the battery is reversed, the P-N junction becomes reverse biased so no current flows. |
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