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Moving Charges and Magnetism Test - 18
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Moving Charges and Magnetism Test - 18

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  • Question 1/10
    4 / -1
    Two concentric coils each of radius equal to 2π cm are placed at right angles to each other. 3 A and 4 A are the currents flowing in each coil respectively. The magnetic induction in Wbm -2 at the centre of the coils will be (10 = 4π × 10-7 WbAm -1)
    Solutions

  • Question 2/10
    4 / -1
    A wire shown in figure carries a current of 40 A. If r = 3.14 cm, the magnetic field at point P will be

    Solutions

  • Question 3/10
    4 / -1

    Solutions

  • Question 4/10
    4 / -1
    A solenoid of length 1.0 m has a radius of 1 cm and has a total of 1000 turn wound on it. It carries a current of 5 A. If an electron were to move with a speed of 104 ms -1 along the axis of the current carrying solenoid the force experienced by this electron is
    Solutions

  • Question 5/10
    4 / -1
    A proton of mass m and charge q is moving in a plane with kinetic energy E. If there exists a uniform magnetic field B, perpendicular to the plane of the motion, the proton will move in a circular path of radius
    Solutions

  • Question 6/10
    4 / -1
    A stream of electrons and protons are directed towards a narrow slit in a screen (see figure). The intervening region has a uniform electric field E (vertically downwards) and a uniform magnetic field B (out of the plan of the figure) as shown. Then,

  • Question 7/10
    4 / -1

  • Question 8/10
    4 / -1
    A proton is moving in a uniform magnetic field B in a circular path of radius a in a direction perpendicular to z-axis along which field B exists. Calculate the angular momentum, if the radius a and charge on proton is e.
    Solutions

  • Question 9/10
    4 / -1
    An electron having charge 16 × 10 -19 C and mass 9 × 10-31 kg is moving with speed 4 × 10 6 ms -1 in a magnetic field of 2 × 10 -1 Tin a circular orbit. The force acting on electron and the radius of the circular orbit will be
    Solutions

  • Question 10/10
    4 / -1
    A proton with energy of 2 MeV enters a uniform magnetic field of 2.5 T normally. The magnetic force on the proton is (take, mass of proton to be 1.6 × 10-27 kg)
    Solutions

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