When a potential difference is applied across, the current passing throughA. an insulator at 0 K is zeroB. a semiconductor at 0 K is zeroC. a metal at 0 K is finiteD. a p-n diode at 300K is finite, if it is reverse biased

When a potential difference is applied across, the current passing thr

1.	When a potential difference is applied across, the current passing throughA. an insulator at 0 K is zeroB. a semiconductor at 0 K is zeroC. a metal at 0 K is finiteD. a p-n diode at 300K is finite, if it is reverse biased
Answer» Correct Answer - A::B::D (a,b,d) At 0K an insulator does not permit any current to flow through it. Option (a) is correct. At 0K a semiconductor behaves as an insulator. Option (b) is correct. In reverse biasing at 300 K, a very small current. Flows through a p-n junction diode. Option (d) is correct. In case of metal, the current flowing will be very-very high because a metal becomes super conductor at 0K. Option (c ) is incorrect.

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When a potential difference is applied across, the current passing throughA. an insulator at 0 K is zeroB. a semiconductor at 0 K is zeroC. a metal at 0 K is finiteD. a p-n diode at 300K is finite, if it is reverse biased

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