Modern Physics 6 Question 27

30. Two identical $p-n$ junctions may be connected in series with a battery in three ways. The potential drops across the two $p-n$ junctions are equal in

$(1989,2 M)$

circuit-1 circuit-2

(a) circuit-1 and circuit-2

(b) circuit-2 and circuit-3

(c) circuit-3 and circuit-1

(d) circuit-1 only

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Solution:

  1. In circuit 2 both the diodes are forward biased and in circuit 3 both the diodes are reverse biased.


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