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Electrostatics ...

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  • Question 1
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    A spherical conductor of radius 2 cm is uniformly charged with 3 nC . What is the electric field at a distance of 3 cm from the centre of the sphere ?

  • Question 2
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  • Question 3
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  • Question 4
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  • Question 5
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    In a uniformly charged sphere of total charge Q and radius R, the electric field E is plotted as function of distance from the centre. The graph which would correspond to the above will be

  • Question 6
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    A proton and an electron are placed in a uniform electric field

  • Question 7
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    The two infinite parallel metal plates, contain electric charges with charge densities + σ and –σ respectively and they are separated by a small distance in air. If the permittivity of air is ε0 , then the magnitude of the field between the two plates with its directions will be

  • Question 8
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    A wooden block performs SHM on a frictionless surface with frequency v0 .The block carries a charge + Q on its surface. If now a uniform electric field E is switched on as shown, then the SHM of the block will be

  • Question 9
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    A few electric field lines for a system of two charges Q1 and Q2 fixed at two different points on the x-axis are shown in the figure. These lines suggest that

  • Question 10
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    A uniformly charged thin spherical shell of radius R carries uniform surface charge density of σ per unit area. It is made of two hemi-spherical shells, held together by pressing them with force F (see figure). F is proportional to

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