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10th Class Science Electricity and Circuits Question Bank Electricity

  • question_answer
    A uniform wire of length 5 cm is carrying a steady current. The electric field inside it is\[0.\text{2 V}/\text{m}\]. The potential difference across the ends of the wire is

    A)  \[0.1\,V\]              

    B)         \[0.5\,V\]

    C)  \[5\,V\]                              

    D)         \[{{10}^{-2}}\,V\]  

    Correct Answer: D

    Solution :

                    \[E=\frac{V}{l}\]or\[V=El=0\cdot 2\times 5\times {{10}^{-2}}=1\times {{10}^{-2}}\]


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