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NEET Sample Paper NEET Sample Test Paper-67

  • question_answer
    The diode used in the circuit shown in the figure has a constant voltage drop of 0.5 V at all currents and a maximum power rating of 100 milliwatts. What should be the value of the resistor R, connected in series with the diode for obtaining maximum current

    A) 1.50                 

    B) 50

    C) 6.670               

    D) 2000

    Correct Answer: B

    Solution :

    The current through circuit \[i=\frac{P}{V}=\frac{100\times {{10}^{-3}}}{0.5}\,=\,\,0.2\,\,A\] \[\therefore \] Voltage drop across resistance \[= 1.5-0.5\] \[=\,\,1\,V\]


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