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QNEET-2023-Ph-230: NEET 2023 Physics - Class 12 NEET-2023-Ph-230 Solution: A wire carrying a current I along the positive x-axis has…

A wire carrying a current I along the positive x-axis has length L. It is kept in a magnetic field

\vec{B} = (2\hat{i} + 3\hat{j} - 4\hat{k})\text{T}

. The magnitude of the magnetic force acting on the wire is:

5\sqrt{IL}

5 IL

3\sqrt{IL}

3 IL

Step-by-Step Verified Solution

F _ = I ( _ _ _ B _ ) = I [ ( L i ^ ) _ ( 2 i ^ + 3 j ^ _ 4 k ^ ) ] = I ( 4 L j ^ + 3 L k ^ ) | F _ | = 5 IL