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A semi-conducting 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-n junction (b) An intrinsic semi-conductor (c) A p-type semi-conductor (d) An n-type semi-conductor



A semi-conducting 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-n junction


(b)    An intrinsic semi-conductor


(c)    A p-type semi-conductor


(d)    An n-type semi-conductor


Grade:upto college level

1 Answers

Aditi Chauhan
askIITians Faculty 396 Points
10 years ago

(a)

In reverse bias, the current through a p-n junction is almost zero.

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