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Moving Charges ...

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  • Question 1
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    A charged particle enters at 30o to the magnetic field. Its path becomes

  • Question 2
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    An electron having a charge e moves with a velocity v in X–direction. An electric field acts on it in Y – direction. The force on the electron acts in

  • Question 3
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  • Question 4
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    A proton and an α – particle enter a uniform magnetic field perpendicular with the same speed. If proton takes 20μ seconds to make 5 revolutions, then the periodic time for the α – particle would be

  • Question 5
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    A straight wire of length 1.0 m and carrying current of 1.2 A is placed in a uniform magnetic field of induction 2T. The magnetic field is perpendicular to the length of the wire.The force on the wire is

  • Question 6
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    An electron moves in a circular arc of radius 10 m at a constant speed of 2 × 107 ms-1 with its plane of motion normal to a magnetic flux density of 10-5 T. What will be the value of specific charge of the electron ?

  • Question 7
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    Which has greater resistance?

  • Question 8
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    The deflection in moving coil galvanometer falls from 50 divisions to 10 divisions, when a shunt of 12 Ω is applied, the resistance of the galvanometer coil is

  • Question 9
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    In a shunted ammeter, only 10% of current passes through the galvanometer of resistance G. The resistance of the shunt is

  • Question 10
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    A voltmeter has resistance of 2000 Ω and it can measure upto 2V. If we want to increase its range by 8V, then required resistance in series will be

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