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Potential at a Point Due to a Dipole

Electric fiel...

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Electric field atcentre of uniformly charged ring is zero what is the electric field at center of half if charge on it be Q and radius be R

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Q. The electric field at the centre of a uniformly charged ring is zero. What is the electric field at the centre of a half ring if the charge on it be Q and its radius be R?

Q. A ring of radius R is uniformly charged. At what distance from the electric field will be maximum (on its axis).

Q. Assertion :A uniformly charged disc has a pin hole at its centre. The electric field at the centre of the disc is zero Reason: Disc can be supported to be made up of many rings. also electric field at the centre of uniformly charged ring is zero

Q. A ring of radius R has charge -Q distributed uniformly over it. Calculate the charge that should be placed at the center of the ring such that the electric field becomes zero at a point on the axis of the ring at distant R from the center of the ring

Q. Assertion :
A uniformly charged disc has a pin hole at its centre. The electric field at the centre of the disc is zero.

Reason :
Disc can be supposed to be made up of many rings. also electric field at the centre of uniformly charged ring is zero.

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Potential at a Point Due to a Dipole

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