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Electrostatics ...

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  • Question 1
    4 / -1

    Four metal conductors having different shapes
    1. a sphere
    2. cylinder
    3. pear
    4. lightning conductor
    are mounted on insulating stands and charged. The which one is best suited to retain the charges for a longer time is

  • Question 2
    4 / -1

    If a conducting medium is placed between two charges, then the electric force between them will become

  • Question 3
    4 / -1

    Charge q of mass m is placed in a uniform electric field E, then KE after time t

  • Question 4
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    A point charge q produces an electric field of magnitude 2 NC -1 at a point distance 0.25 m from it. What is the value of charge?

  • Question 5
    4 / -1

    The electric intensity outside a charged sphere of radius R at a distance r(r > R) is

  • Question 6
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    The electric field created by a point charge falls with distance r from the point charge as

  • Question 7
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    A parallel plate air capacitor is connected to a battery. The quantities charge, voltage, electric field and energy associated with this capacitor are given by Q0, V0, E0 and U0 respectively. A dielectric slab is now introduced to fill the space between the plates with battery still in connection. The corresponding quantities now given by Q, V, E and U are related to the previous one as

  • Question 8
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    What is angle between electric field and equipotential surface ?

  • Question 9
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    Two identical thin rings, each of radius R metres, are coaxially placed a distance R metres apart. If Q1 coulomb, and Q2 coulomb, are respectively the charges uniformly spread on the two rings, the work done in moving a charge q from the centre of one ring to that of the other is

  • Question 10
    4 / -1

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