NEET Physics Current Electricity, Charging & Discharging Of Capacitors / वर्तमान बिजली, चार्ज और कैपेसिटर का निर NEET PYQ-Current Electricity Charging Capacitors

  • question_answer
    A wire of resistance \[4\,\Omega \] is stretched to twice   its   original   length. The resistance of stretched wire would be                                                                                                                                        [NEET 2013]

    A)  \[2\,\,\Omega \]                        

    B)  \[4\,\,\Omega \]

    C)  \[8\,\,\Omega \]            

    D)       \[16\,\,\Omega \]

    Correct Answer: D

    Solution :

    [d] As \[R'={{n}^{2}}R={{2}^{2}}\times 4=4\times 4=16\,\Omega \]


You need to login to perform this action.
You will be redirected in 3 sec spinner