Magnetic field at center of..... | JEE Main 2023 | Magnetic

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JEE MAIN 2023

01-02-2023 S2

Question

As shown in the figure, a long straight conductor with semicircular arc of radius $\frac{\pi}{10} \mathrm{~m}$ is carrying current $\mathrm{I}=3 \mathrm{~A}$. The magnitude of the magnetic field, at the center O of the arc is: (The permeability of the vacuum $$ \left.=4 \pi \times 10^{-7} \mathrm{NA}^{-2}\right) $$

Select the correct option:

A

$6 \mu \mathrm{~T}$

B

$1 \mu \mathrm{~T}$

C

$4 \mu \mathrm{~T}$

D

$3 \mu \mathrm{~T}$

✓ Correct! Well done.

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Solution

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