The square loop in the figure has sides of length 20 cm. It has 5 turns and carries a current of 2 A. The normal to the loop is at 37∘ to a uniform field, B=0.5^j T. Find the work needed to rotate the loop from its position of minimum energy to the given orientation.

The square loop in the figure has sides of length 20 cm. It has 5 turn

1.	The square loop in the figure has sides of length 20 cm. It has 5 turns and carries a current of 2 A. The normal to the loop is at 37∘ to a uniform field, B=0.5^j T. Find the work needed to rotate the loop from its position of minimum energy to the given orientation.
Answer» The square loop in the figure has sides of length $20 cm$ . It has $5$ turns and carries a current of $2 A$ . The normal to the loop is at $37^{\circ}$ to a uniform field, $B = 0.5^j T$ . Find the work needed to rotate the loop from its position of minimum energy to the given orientation.

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The square loop in the figure has sides of length 20 cm. It has 5 turns and carries a current of 2 A. The normal to the loop is at 37∘ to a uniform field, B=0.5^j T. Find the work needed to rotate the loop from its position of minimum energy to the given orientation.

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