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Moving Charges and Magnetism Test - 66

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Moving Charges and Magnetism Test - 66
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  • Question 1
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  • Question 2
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    An electron of mass m and charge q is travelling with a speed v along a circular path of radius r at right angles to a uniform of magnetic field B. If speed of the electron is doubled and the magnetic field is halved, then resulting path would have a radius of
    Solution

  • Question 3
    4 / -1
    A uniform electric field and a uniform magnetic field exist in a region in the same direction. An electron is projected with a velocity in the same direction. Then the electron will
  • Question 4
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    A particle of mass m and charge q enters a magnetic field B perpendicularly with a velocity v. The radius of the circular path described by it will be
  • Question 5
    4 / -1
    The radius of circular path of an electron when subjected to a perpendicular magnetic field is
  • Question 6
    4 / -1
    A particle of mass 0.6 g and having charge of 25 nC is moving horizontally with a uniform velocity 1.2 × 104 ms–1 in a uniform magnetic field, then the value of the magnetic induction is (g = 10 ms–2)
    Solution

  • Question 7
    4 / -1
    An α particle and a proton travel with same velocity in a magnetic field perpendicular to the direction of their velocities. Find the ratio of the radii of their circular path
    Solution

  • Question 8
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    An electron (mass = 9 × 10–31 kg, charge = 1.6 × 10–19 C) whose kinetic energy is 7.2 × 10–18 joule is moving in a circular orbit in a magnetic field of 9 × 10–5 weber/m2. The radius of the orbit is
    Solution

  • Question 9
    4 / -1
    An electron enters a region where electrostatic field is 20 N/C and magnetic field is 5 T. If electron passes undeflected through the region, then velocity of electron will be
    Solution

  • Question 10
    4 / -1
    In the given figure, the electron enters into the magnetic field. It deflects in ……. direction

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