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JEE PHYSICS MCQ: ELECTRIC FIELDS AND CHARGES
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A conducting sphere of radius has an unknown charge. The electric field at from the centre of the sphere is and points radially inward. What is the net charge on the sphere?
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Correct option: B
Option B (2 nC) is correct because the net charge is calculated using the electric field at a given distance from the center of the sphere.
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Reason:- At any point, there is only one direction of electric field. Statement-I: A positive point charge is brought in an electric field, the electric field at neary by point will increase
Statement-II: Electric field produced by charge may favour the existing electric filed Two particles having equal mass and charge
are separated by a distance The force(s) they
experience is (are) Statement-I: No 2 electric lines of force can intersect each other
Statement-II: tangent at any point of electric line of force gives the direction of electric field A force of is acting between two charges in air if the space between them is completely filled with glass , then the new force will be …… An electron is placed at centre of a conducting sphere of radius 0.2 metre having charge coulomb. The force of on the electron is ________ N