question_answer

Figure shows a circuit in which three identical diodes are used. Each diode has forward resistance of 20  and infinite backward resistance. Resistors . Battery voltage is 6 V. The current though . [JEE ONLINE 22-04-2013]

A)              50 mA

B) 100 mA

C)              60 mA

D) 25 mA

Correct Answer: A

Solution :

[a] Here, diodes and are forward biased and is reverse biased.

Therefore current through