For the given circuit of p-n junction diode which is correct (a) in forward bias the voltage across R is V (b) in reverse bias the voltage across R is V (c) in forward bias the voltage across R is 2V (d) in reverse bias the voltage across R is 2V.

Answer: (a). In forward bias the (ideal) diode has nearly zero resistance, so the whole applied V drops across R. In reverse bias the diode is nearly open, so the voltage across R is nearly zero. So the answer is (a).

For the given circuit of p-n junction diode which is correct | NEET 2002 (AIPMT)

Q120NEET 2002 · AIPMTMedium

P-N Junction Diode

For the given circuit of p-n junction diode which is correct

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Answer: (a)

In forward bias the (ideal) diode has nearly zero resistance, so the whole applied $V$ drops across $R$ .
In reverse bias the diode is nearly open, so the voltage across $R$ is nearly zero.
So the answer is (a).

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