question_answer 26)

  In the circuit shown in Fig. 9(EP).5(a), if the diode forward voltage drop is 0.3 V, the voltage difference between A and B is                 (a) 1.3V                                (b) 2.3V                 (c) 0                                       (d) 0.5 V

Answer:

  (b) Refer Fig. 9(EP).5(b), let V be the potential difference between A and B. Then  or