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Electric Curren...

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  • Question 1
    1 / -0

    A wire of resistance 3.0Ω is stretched to twice its original length. The resistance of the new wire will be

  • Question 2
    1 / -0

    A wire of resistance 4 is bent into a circle. The resistance between the ends of a diameter of the circle is

  • Question 3
    1 / -0

    The range of a voltmeter is 5V and its resistance is 5000 (49000 connected in series with a coil of resistance 100). What additional resistance should be connected in series with it so that its range is doubled?

  • Question 4
    1 / -0

    A galvanometer of resistance 10 gives full-scale deflection when 1mA current passes through it. The resistance required to convert it into a voltmeter reading up to 2.5 V is

  • Question 5
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    Which of the following statement is correct?

  • Question 6
    1 / -0

    The deflection in a moving coil galvanometer falls from 50 to 10 divisions when a shunt of 12 is connected across it. The resistance of the galvanometer coil is

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