JEE PHYSICS MCQ: ELECTRIC FIELDS AND CHARGES

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Analyzing +4 | -1

For a uniformly charged ring of radius

R,

the electric field on its axis has the largest magnitude at a distance

h

from its centre. Then, value of

h

View answer and explanation

Correct option: A

\frac{R}{{\sqrt 2 }}

Option A (

\frac{R}{{\sqrt 2 }}

) is correct because the electric field is maximum at this distance, which is found by differentiating the electric field equation and setting it to zero.

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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

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5 \times {10^{ - 2}}

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