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12th Class Physics Current Electricity, Charging & Discharging Of Capacitors / वर्तमान बिजली, चार्ज और कैपेसिटर का निर Question Bank MCQ - Current Electricity

  • question_answer
    In the electric circuit shown, each cell has an emf of 2 V and internal resistance is \[1\,\Omega \]. The external resistance is \[2\,\Omega \]. The value of the current l is (in ampere):

    A) 2         

    B)   1.25

    C) 0.4                               

    D) 1.2

    Correct Answer: D

    Solution :

    (d) 1.2 The current = \[\frac{\text{net}\,\,\text{emf}}{\text{net}\,\,\text{resistance}}\]             \[\text{l=}\frac{2+2+2}{1+1+1+2}\]             \[=\frac{6}{5}\]             \[=1.2\,A\]


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