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Match List-I with List-II regarding the behaviour of circuits containing two identical ideal p-n junction diodes connected to a DC source. List-I (Configuration) List-II (Circuit Behaviour) (A) Two diodes in series, both forward-biased (I) High equivalent resistance, unequal potential drops across the diodes (B) Two diodes in series, both reverse-biased (II) Low equivalent resistance, current flows almost entirely th

Options

  1. A(A)-(III), (B)-(I), (C)-(IV), (D)-(II)
  2. B(A)-(IV), (B)-(III), (C)-(I), (D)-(II)
  3. C(A)-(III), (B)-(IV), (C)-(I), (D)-(II)
  4. D(A)-(III), (B)-(IV), (C)-(II), (D)-(I)

Correct answer

C. (A)-(III), (B)-(IV), (C)-(I), (D)-(II)

Step-by-step solution

In configuration (A), both diodes are forward-biased, offering low resistance. Being identical, they have equal resistance and thus equal potential drops. (A) matches (III). In configuration (B), both diodes are reverse-biased, offering very high resistance. Being identical, they have equal high resistance and equal potential drops. (B) matches (IV). In configuration (C), one diode is forward-biased (low resistance) and one is reverse-biased (high resistance). The equivalent resistance of the series combination is

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