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Current Electri...

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  • Question 1
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    The resistance of a wire of length L is R. If the wire is stretched to increase its length to 4L, then what will be the new resistance of the wire?

  • Question 2
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    The following question has four choices out of which ONLY ONE is correct.

    The electrical intensity E, current density J and specific resistance ρ are related to each other through the relation

  • Question 3
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    A uniform wire of resistance R and length L is cut into four equal parts of length L/4 and then connected in parallel combination. What will be the effective resistance of the combination?

  • Question 4
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    If a circuit containing two unequal resistors is connected in parallel,

  • Question 5
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    The following question has four choices out of which ONLY ONE is correct.

    Ohm`s law is the relation between

  • Question 6
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    The following question has four choices out of which ONLY ONE is correct.

    Which of the following is an example of non-ohmic resistance?

  • Question 7
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    A wire has radius r having resistance R , when a wire is stretched and its radius becomes r/2, then its resistance will be

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