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Moving Charges and Magnetism Test - 33

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Moving Charges and Magnetism Test - 33
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Weekly Quiz Competition
  • Question 1
    4 / -1
    The magnetic field near a current carrying conductor is given by
  • Question 2
    4 / -1
    A current of 10 A is passing through a long wire which has semicircular loop of the radius 20 cm as shown in the figure. Magnetic field produced at the centre of the loop is

    Solution

  • Question 3
    4 / -1
    A wire in the form of a circular loop of one turn carrying a current produces a magnetic field B at the centre. If the same wire is looped into a coil of two turns and carries the same current, the new value of magnetic induction at the centre is
    Solution

  • Question 4
    4 / -1
    A current flows in a conductor from east to west. The direction of the magnetic field at a points above the conductor is
    Solution

  • Question 5
    4 / -1
    The magnetic field due to a current carrying circular loop of radius 3 cm at a point on the axis at a distance of 4 cm from the centre is 54 μT. What will be its value at the centre of the loop
    Solution

  • Question 6
    4 / -1
    The magnetic induction at the centre of a current carrying circular of coil radius r, is
    Solution

  • Question 7
    4 / -1
    Two wires of same length are shaped into a square and a circle. If they carry same current, ratio of the magnetic moment is
    Solution

  • Question 8
    4 / -1
    The direction of magnetic lines of force produced by passing a direct current in a conductor is given by
  • Question 9
    4 / -1
    The field due to a long straight wire carrying a current I is proportional to
    Solution

  • Question 10
    4 / -1
    Two concentric coils each of radius equal to 2π cm are placed at right angles to each other 3 ampere and 4 ampere are the currents flowing in each coil respectively. The magnetic induction in weber/m2 at the centre of the coils will be (μ0 = 4 π × 10–7 Wb/A.m)
    Solution

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