Post Utme Uniben 2019 Physics Question 39

Practice objective / multiple choice question 39 from the 2019 Post Utme Uniben Physics examination.

Post Utme Uniben 2019 Physics Objective / Multiple Choice

Question 39 POST_UTME_UNIBEN • 2019 • PHYSICS • objective

A magnetic field $B$ is directed perp\endicular to the plane of a circular loop of wire with radius $r$. If a current $I$ flows through the loop, the magnetic moment of the loop is given by $\mu = I\pi r^2$. Which of the following expressions for the torque $\tau$ experienced by the loop is correct?

Correct Answer A. $ \tau = \mu B \sin{\theta} $

B. $ \tau = \mu B \cos{\theta} $

C. $ \tau = \mu B \tan{\theta} $

D. $ \tau = \mu B \cot{\theta} $

Correct Answer

Correct Option:

$ \tau = \mu B \sin{\theta} $

This is Post Utme Uniben 2019 Physics Question 39. It is one of the objective questions from the 2019 Post Utme Uniben Physics examination.

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