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JEE PHYSICS MCQ: ELECTRIC FIELDS AND CHARGES

1 Medium

1 of 1

Application +4 | -1

There is an electric field

E

in x-direction. If the work done in moving a change of 0.4 C through distance of 2 m along a line making an angle

60^\circ

with x-axis is 12 J, then the value of electric field

E

will be

View answer and explanation

Correct option: C

30 N/C

Option C (30 N/C) is correct because the electric field is calculated using the formula

W = qEd\cos \theta

.

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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

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

r.

The force(s) they
experience is (are) Statement-I: No 2 electric lines of force can intersect each other

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4N

is acting between two charges in air if the space between them is completely filled with glass

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

, then the new force will be ……

N

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5 \times {10^{ - 2}}

coulomb. The force of on the electron is ________ N