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Grade upto college level IIT JEE Entrance Exam

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

Profile image of Amit Saxena
12 Years agoGrade upto college level
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1 Answer

Profile image of Aditi Chauhan
12 Years ago

(a)

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

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