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JEE PHYSICS MCQ: ELECTRIC FIELDS AND CHARGES

1 Hard

1 of 1

Application +4 | -1

A particle of charge

-q

and mass

m

moves in a circle of radius

r

around an infinitely long line charge of linear charge density

+\lambda.

Then time period will be given as:

(Consider

k

as Coulomb's constant)

View answer and explanation

Correct option: C

T=2 \pi r \sqrt{\frac{m}{2 k \lambda q}}

Option C (

T=2 \pi r \sqrt{\frac{m}{2 k \lambda q}}

) is correct because it correctly equates the centripetal force with the electrostatic force and solves for the time period.

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