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JEE PHYSICS MCQ: ELECTRIC FIELDS AND CHARGES

1 Medium

1 of 1

Application +4 | -1

n identical mercury droplets charged to the same potential

V

coalesce to form a single bigger drop. The potential of new drop will be

View answer and explanation

Correct option: D

{n^{2/3}}V

Option D (

{n^{2/3}}V

) is correct because the potential of the new drop is proportional to

n^{2/3}

times the potential of the small droplets.

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Assertion:- Electric field lines do not cut at any point.
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

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r.

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\left( {{\varepsilon _r} = 8} \right)

, then the new force will be ……

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5 \times {10^{ - 2}}

coulomb. The force of on the electron is ________ N