NEET Sample Paper NEET Sample Test Paper-15

  • question_answer The current through \[10\Omega \] resistor in the circuit given below is (the diodes are ideal)

    A)  50 mA                        

    B)  20 mA

    C)  40 mA                        

    D)  80 mA

    Correct Answer: D

    Solution :

    \[{{D}_{2}}\]is reverse biased. As it is an ideal diode, its resistance is infinite and no current flows through it, \[{{D}_{1}}\]is forward biased. As it is an ideal diode, its resistance is zero and hence, the current through \[10\Omega \]resistor is \[I=\frac{2}{10+15}=0.08\,A=80\,mA\] Hence, the correction option is [d].


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