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An uncharged sphere of metal is placed inside a charged parallel plate capacitor. The lines of force look like,

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Important Questions on Electrostatics

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A metallic solid sphere is placed in a uniform electric field. The path followed by the lines of force is,

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A charge $Q$ is enclosed by a Gaussian spherical surface of radius R. If the radius is doubled, then the outward electric flux will 

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If the electric flux entering and leaving an enclosed surface are ϕ1 and ϕ2, respectively, then the electric charge inside the surface will be,
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An electric dipole is placed at the centre of a sphere. Mark the correct answer.
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Find the flux through the Gaussian surface, given that the radius of the circle is R.

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A charge Q is placed at the centre of the line joining two equal charges q. The system of the three charges will be in equilibrium if Q is equal to
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Three charges-q1,+q2 and -q3 are placed as shown in the figure. The x-component of the force on -q1 is proportional to

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Two small charged spheres have charges of 2×10-7C and 3×10-7C. They are placed 30 cm apart in air. What is the force between them?