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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
    The length of the wire is doubled. Its conductance will be                                                                                      [Kerala PMT 2004]

    A)            Unchanged

    B)                                      Halved

    C)                    Quadrupled                  

    D)            1/4 of the original value

    Correct Answer: B

    Solution :

                 Conductance \[C=\frac{1}{R}=\frac{A}{\rho l}\,\Rightarrow \,C\propto \frac{1}{l}\]


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