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A circular wire loop of radius, carries a total charge of, distributed uniformly over its length. A small length of, of wire is cut off. The magnitude of the electric field at the centre due to the remaining wire is,
(Assume SI units)
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Important Questions on Electrostatics
MEDIUM
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Two infinitely long thin straight wires having uniform linear charge densities and are arranged parallel to each other at a distance apart. The intensity at a point midway between them is
MEDIUM
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A semi-infinite non conducting rod lies along -axis with its left end at the origin. The rod has uniform linear charge density The magnitude of electric field at a point on the -axis at the distance from the origin, will be
EASY
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A particle of mass and charge is thrown perpendicular to an electric field of intensity with an initial velocity The particle moves a distance perpendicular to the field and a distance along the direction of the field. If then the is given by
HARD
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The work done to assemble the three charges in a configuration as shown in the figure below is
EASY
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Consider the charged cylindrical capacitor. The magnitude of electric field in its annular region
