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JEE Main & Advanced Physics Current Electricity, Charging & Discharging Of Capacitors / वर्तमान बिजली, चार्ज और कैपेसिटर का निर Question Bank Electric Conduction Ohms and Resistance

  • question_answer
    Calculate the amount of charge flowing in 2 minutes in a wire of resistance 10 W when a potential difference of 20 V is applied between its ends                              [Kerala (Engg.) 2001]

    A)            120 C                                       

    B)            240 C

    C)            20 C                                          

    D)            4 C

    Correct Answer: B

    Solution :

                 \[i=\frac{V}{R}=\frac{Q}{t}\Rightarrow Q=\frac{Vt}{R}=\frac{20\times 2\times 60}{10}=240\,C\].


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