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A d.c. battery of V volt is connected to a series combination of a resistor R and an ideal diode D as shown in the figure below. The potential difference across R will be
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- 2V when diode is forward biased
- Zero when diode is forward biased
- V when diode is reverse biased
- V when diode is forward biased
Correct Option: B
In forward biasing, the diode conducts. For ideal junction diode, the forward resistance is zero; therefore, entire applied voltage occurs across external resistance R
i.e., there occurs no potential drop, so potential across R is V in forward biased.
