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Electrostatics ...

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  • Question 1
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    Two equal charges q are placed at a distance of 2a and a third charge –2q is placed at the midpoint. The potential energy of the system is ....

  • Question 2
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  • Question 3
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  • Question 4
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    A sphere of radius 1cm has potential of 8000 v, then energy density near its surface will be ...

  • Question 5
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    If a charged spherical conductor of radius 10cm has potential v at a point distant 5 cm from its centre, then the potential at a point distant 15cm from the centre will be .....

  • Question 6
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    Electric charges of +10c, 5c, –3c and 8c are placed at the corners of a square of side √2 m the potential at the centre of the square is ......

  • Question 7
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    Two positive point charges of 12c and 8c are 10 cm apart each other. The work done in bringing them 4cm closer is .....

  • Question 8
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  • Question 9
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    If an electron moves from rest from a point at which potential is 50 volt to another point at which potential is 70 volt, then its kinetic energy in the final state will be .....

  • Question 10
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    Three charges Q, + q and + q are placed at the vertices of a right-angled triangle as shown. The net electrostatic energy of the configuration is zero if Q is equal to .....

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