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JEE Main & Advanced Physics Semiconducting Devices Question Bank Critical Thinking

  • question_answer
    The circuit shown in following figure contains two diode D1 and D2 each with a forward resistance of 50 ohms and with infinite backward resistance. If the battery voltage is 6 V, the current through the 100 ohm resistance (in amperes) is  [IIT-JEE 1997]

    A)            Zero                                         

    B)            0.02

    C)            0.03                                          

    D)            0.036

    Correct Answer: B

    Solution :

                       According to the given polarity, diode D1 is forward biased while D­2 is reverse biased. Hence current will pass through D1 only. So current \[i=\frac{6}{(150+50+100)}=0.02\,A\]


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