Q.

Two similar p-n junctions can be connected in three different ways as shown in the figures. The two connections across which the potential difference is same are

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a

circuits a and c

b

circuits b and c

c

all the circuits

d

circuits a and b

answer is B.

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Detailed Solution

In (1) one is forward biased and the other one is reverse biased.In (2) both are forward biased
In (3) both are reverse biased

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