Question

derive the expression for the electric field at a point due to point change​

Answer 1

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• The electric field produced by the charge Q at a point r is given as.
• Where r = r/r, is a unit vector from the origin to the point r.
• the SI unit of electric field as N/C.
• If a charge q is brought at any point around Q, Q itself is bound to experience an electrical force due to q and will tend to move.

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Answer 2

Answer:

Derive an expression for electric field intensity at a point due to point charge. Electric field intensity at a point due to a charge is the force acting on a unit positive test charge when placed at the point. or →E=14πε0×qr2ˆr [∵K=14πε0].

Explanation: