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JEE PHYSICS MCQ: ELECTRIC FIELDS AND CHARGES

1 Medium

1 of 1

Application +4 | -1

A point charge

q

produces an electric field of magnitude

2

\mathrm{N}{\mathrm{C}^{ - 1}}

at a point distance

0.25\;\mathrm{ }m

from it. What is the value of charge?

View answer and explanation

Correct option: A

1.39 \times {10^{ - 11}}

C

Option A (

1.39 \times {10^{ - 11}}

C) is correct because it is calculated directly from the electric field formula using the given magnitude and distance.

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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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are separated by a distance

r.

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

, then the new force will be ……

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5 \times {10^{ - 2}}

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