The magnetic field at the centre... | Moving Charges and Magnetism

JEE MAIN 2022

24-06-22 S1

Question

The magnetic field at the centre of a circular coil of radius r, due to current I flowing through it, is B. The magnetic field at a point along the axis at a distance $\frac{r}{2}$ from the centre is :

Select the correct option:

B/2

$\left(\frac{2}{\sqrt{5}}\right)^3 B$

$\left(\frac{2}{\sqrt{3}}\right)^3 B$

✓ Correct! Well done.

✗ Incorrect. Try again or view the solution.

Solution

Question Tags

JEE Main

Physics

Medium

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