Post Utme Ui 2020 Physics Question 26

Practice objective / multiple choice question 26 from the 2020 Post Utme Ui Physics examination.

Post Utme Ui 2020 Physics Objective / Multiple Choice

Question 26 POST_UTME_UI • 2020 • PHYSICS • objective

A charged particle of mass $m$ and charge $q$ moves in a uniform magnetic field of strength $B$ with a velocity $v$. If the particle's trajectory is a circle of radius $r$, what is the magnitude of the magnetic field $B$ in terms of $m$, $q$, and $v$?

A. B = \frac{q^2}{4 \pi \epsilon_0 m v}

Correct Answer B. B = \frac{mv}{q r}

C. B = \frac{q r}{4 \pi \epsilon_0 m v}

D. B = \frac{q^2}{4 \pi \epsilon_0 m v^2}

Correct Answer

Correct Option:

B = \frac{mv}{q r}

This is Post Utme Ui 2020 Physics Question 26. It is one of the objective questions from the 2020 Post Utme Ui Physics examination.

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