A loop carrying current I.... | JEE Advanced 2012 | Magnetic

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JEE Advance 2012

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Question

A loop carrying current I lies in the x -y plane as shown in the figure. the unit vector $\hat{\mathrm{k}}$ is coming out of the plane of the paper. the magnetic moment of the current loop is :

Select the correct option:

A

$\mathrm{a}^2 \mathrm{I} \hat{\mathrm{k}}$

B

$\left(\frac{\pi}{2}+1\right) \mathrm{a}^2 \mathrm{I} \hat{\mathrm{k}}$

C

$-\left(\frac{\pi}{2}+1\right) \mathrm{a}^2 \mathrm{I} \hat{\mathrm{k}}$

D

$(2 \pi+1) \mathrm{a}^2 \mathrm{I} \hat{\mathrm{k}}$

✓ Correct! Well done.

✗ Incorrect. Try again or view the solution.

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