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Electrostatics ...

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  • Question 1
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  • Question 2
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    A metallic spherical shell of radius R has a charge –Q on it. A point charge +Q is placed at the centre of the shell. Which of the graphs shown below may correctly represent the variation of the electric field E with distance r from the centre of the shell

  • Question 3
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    What is called electric energy tank

  • Question 4
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    Two parallel infinite line charges + λ and – λ are placed with a separation distance R in free space. The net electric field exactly mid-way between the two line charges is

  • Question 5
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    The law, governing the force between electric chargesis known as

  • Question 6
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    When the distance between the charged particles is halved, the force between them becomes

  • Question 7
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    There are two charges +1 µC and +5 µC respectively. The ratio of the forces acting on them will be

  • Question 8
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    The ratio of the forces between two small spheres with constant charge (a) in air (b) in a medium of dielectric constant K is

  • Question 9
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    Four charges are arranged at the corners of a square ABCD, as shown in the adjoining figure. The force on the charge kept at the centre O is

  • Question 10
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    A body can be negatively charge by

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