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  4. A current of 3 A is flowing in a linear conductor having a length of 40 cm. The conductor is placed in a magnetic field of strength 500 gauss and makes an angle of 30° with the direction of the field. It experiences a force of magnitude

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Q. A current of $3 A$ is flowing in a linear conductor having a length of $40\, cm$. The conductor is placed in a magnetic field of strength $500 $ gauss and makes an angle of $30^{\circ}$ with the direction of the field. It experiences a force of magnitude

Moving Charges and Magnetism

Solution:

$F = I \ell B \sin \theta=3 \times 0.40 \times\left(500 \times 10^{-4}\right) \times \sin 30^{\circ}$
$=3 \times 10^{-2} N $