A hairpin like shape as shown in figure |EMF|JEE-MAIN 2021

JEE-MAIN 2021

17-03-2021

Question

A hairpin like shape as shown in figure is made by bending a long current carrying wire. What is the magnitude of a magnetic field at point P which lies on the centre of the semicircle ?

Select the correct option:

$\frac{\mu_0 \mathrm{I}}{4 \pi \mathrm{r}}(2-\pi)$

$\frac{\mu_0 I}{4 \pi r}(2+\pi)$

$\frac{\mu_0 I}{2 \pi r}(2+\pi)$

$\frac{\mu_0 I}{2 \pi r}(2-\pi)$

✓ Correct! Well done.

✗ Incorrect. Try again or view the solution.

Solution

Question Tags

JEE Main

Physics

Easy

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