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Electricity Tes...

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  • Question 1
    1 / -0

    If the specific resistance of a wire of length $$l$$ and radius $$r$$ is $$k$$ then resistance is

  • Question 2
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    Which one of the following statements is not correct?

  • Question 3
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    n identical resistors each of resistance r when connected in parallel, have a total resistance R. When these resistors are connected in series, then effective resistance in terms of R is:

  • Question 4
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    What is the effective resistance between points P and Q?

  • Question 5
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    A man has five resistors each of value $$\frac {1}{5}\Omega $$. What is the minimum resistance he can obtain by connecting them ?

  • Question 6
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    A 4$$\Omega$$ resistance is bent through 180$$^o$$ at its midpoint and the two halves are twisted together. Then the resistance is

  • Question 7
    1 / -0

    What is the effective resistance between points P and Q?

  • Question 8
    1 / -0

    The smallest resistance which can be obtained with ten 0.1 ohm resistors is

  • Question 9
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    We have n resistors each of resistance R. The ratio of the combination for maximum and minimum values is

  • Question 10
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    A wire had a resistance of $$12\ \Omega$$. It is bent in the form of a circle. The effective resistance between two points on any diameter is:

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