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12th Standard English Medium Physics Subject Electrostatics Book Back 1 Mark Questions with Solution Part - II

12th Standard

    Reg.No. :
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Physics

Time : 00:30:00 Hrs
Total Marks : 5

    Part I

    5 x 1 = 5
  1. Which charge configuration produces a uniform electric field?

    (a)

    point charge

    (b)

    uniformly charged infinite line

    (c)

    uniformly charged infinite plane

    (d)

    uniformly charged spherical shell

  2. An electric dipole is placed at an alignment angle of 30o with an electric field of 2 x 105 NC-1. It experiences a torque equal to 8 N m. The charge on the dipole if the dipole length is 1 cm is

    (a)

    4 mC

    (b)

    8 mC

    (c)

    5 mC

    (d)

    7 mC

  3. The total electric flux for the following closed surface which is kept inside water

    (a)

    \(\frac { 80q }{ { \varepsilon }_{ 0 } } \)

    (b)

    \(\frac { q }{ { 40\varepsilon }_{ 0 } } \)

    (c)

    \(\frac { q }{ { 80\varepsilon }_{ 0 } } \)

    (d)

    \(\frac { q }{ { 160\varepsilon }_{ 0 } } \)

  4. Rank the electrostatic potential energies for the given system of charges in increasing order

    (a)

    1 = 4 < 2 < 3

    (b)

    2 = 4 < 3 < 1

    (c)

    2 = 3 < 1 < 4

    (d)

    3 < 1 < 2 < 4

  5. A thin conducting spherical shell of radius R has a charge Q which is uniformly distributed on its surface. The correct plot for electrostatic potential due to this spherical shell is _____.

    (a)

    (b)

    (c)

    (d)

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