question_answer 50)

      If each diode in Fig. 9(EP).14 has a forward  bias resistance of 25  and infinite resistance in reverse bias, what will be the values of the current I  and ?

Answer:

                      In circuit. Fig. 9(EP).14, the p-n junction  diodes of arm AB and EF are forward biased and p-n junction of arm CD is reverse biased. Hence resistance of arm CD is infinity. Effective resistance of circuit,                                                                 =                  Current                                 Current                 Current