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Moving Charges and Magnetism Test - 51
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Moving Charges and Magnetism Test - 51

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  • Question 1/10
    4 / -1
    Two long wires are hanging freely. They are joined first in parallel and then in series and then are connected with a battery. In both cases, which type of force acts between the two wires
    Solutions

  • Question 2/10
    4 / -1
    A wire of length 2 m is bent into a circular loop. When a current of 1 A is passed through the loop, then the magnetic moment of the loop is
    Solutions

  • Question 3/10
    4 / -1

  • Question 4/10
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    Wires 1 and 2 carrying currents i1 and i2 respectively are inclined at an angle θ to each other. What is the force on a small element dl of wire 2 at a distance of r from wire 1 (as shown in figure) due to the magnetic field of wire 1?

    Solutions

  • Question 5/10
    4 / -1
    A conducting loop carrying a current I is placed in a uniform magnetic field pointing into the plane of the paper as shown. The loop will have a tendency to

    Solutions

  • Question 6/10
    4 / -1
    A current carrying loop is placed in a uniform magnetic field in four different orientations, I, II, III and IV. Arrange them in the decreasing order of potential energy

    Solutions

  • Question 7/10
    4 / -1

    Solutions

  • Question 8/10
    4 / -1
    Two insulated rings, one of slightly smaller diameter than the other are suspended along their common diameter as shown. Initially the planes of the rings are mutually perpendicular. When a steady current is set up in each of them

  • Question 9/10
    4 / -1
    Two particles each of mass m and charge q are attached to the two ends of a light rod of length 2R. The rod is rotated at constant angular speed about a perpendicular axis passing through its centre. The ratio of the magnitudes of the magnetic moment of the system and its angular momentum about the centre of the rod is
    Solutions

  • Question 10/10
    4 / -1
    Two very long, straight and parallel wires carry steady currents I and I respectively. The distance between the wires is d. At a certain instant of time, a point charge q is at a point equidistant from the two wires in the plane of the wires. Its instantaneous velocity v is perpendicular to this plane. The magnitude of the force due to the magnetic field acting on the charge at this instant is
    Solutions

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