Post Utme Uniport 2020 Physics Question 3

Practice objective / multiple choice question 3 from the 2020 Post Utme Uniport Physics examination.

Post Utme Uniport 2020 Physics Objective / Multiple Choice
Question 3 POST_UTME_UNIPORT • 2020 • PHYSICS • objective

A magnetic field is produced by a current-carrying wire. If the current is $I$ and the length of the wire is $L$, what is the value of the magnetic field at a dis\tance $r$ from the wire?

Answer Options

Correct Answer A. \frac{\mu_0 I}{2\pi r}
B. \frac{2\pi r \mu_0 I}{L}
C. \frac{L \mu_0 I}{2\pi r}
D. \frac{2\pi r}{L \mu_0 I}
Correct Answer
A
Correct Option:
\frac{\mu_0 I}{2\pi r}

About This Question

This is Post Utme Uniport 2020 Physics Question 3. It is one of the objective questions from the 2020 Post Utme Uniport Physics examination.

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