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

  • question_answer
    A 5 A fuse wire can withstand a maximum power of 1 W in circuit. The resistance of the fuse wire is:  [AIPMT (S) 2005]

    A)  \[0.2\,\,\Omega \]

    B)                   \[5\,\,\Omega \]

    C)  \[0.4\,\,\Omega \]

    D)                   \[0.04\,\,\Omega \]

    Correct Answer: D

    Solution :

    [d]
    Power \[P={{i}^{2}}R\]
    \[\Rightarrow \]   \[R=\frac{P}{{{i}^{2}}}\]
    Given,  \[P=1\,W,\,\,i=5A\]
    \[\therefore \]      \[R=\frac{1}{{{(5)}^{2}}}=0.04\,\Omega \]


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