Post Utme Noun 2019 Physics Question 40

Practice objective / multiple choice question 40 from the 2019 Post Utme Noun Physics examination.

Post Utme Noun 2019 Physics Objective / Multiple Choice

Question 40 POST_UTME_NOUN • 2019 • PHYSICS • objective

A particle of mass $m$ is moving in a circular orbit of radius $r$ with a cons\tant speed $v$. If the particle is subjected to a uniform magnetic field of strength $B$, what is the magnitude of the magnetic force acting on the particle?

Correct Answer A. $ \frac{mv^2}{r} $

B. $ \frac{mv}{r} $

C. $ \frac{mvr}{B} $

D. $ \frac{B^2r^2}{m} $

Correct Answer

Correct Option:

$ \frac{mv^2}{r} $

This is Post Utme Noun 2019 Physics Question 40. It is one of the objective questions from the 2019 Post Utme Noun Physics examination.

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