A loop with 1250 turns is inside a uniform magnetic field B = 0.64T and the widt

Question

A loop with 1250 turns is inside a uniform magnetic field B = 0.64T and the width of the loop a = 40cm and the length of the loop b = 50cm. when a DC current I = 7.5A is loaded into the loop, how much torque is generated by the loop? Which direction?

A loop with 1250 turns is inside a uniform magnetic field B = 0.64T and the width of the loop a = 40cm and the length of the loop b = 50cm. when a DC current I = 7.5A is loaded into the loop, how much torque is generated by the loop? Which direction? A loop with 1250 turns is inside a uniform magnetic field B = 0.64T and the width of the loop a = 40cm and the length of the loop b = 50cm. when a DC current I = 7.5A is loaded into the loop, how much torque is generated by the loop? Which direction?

Explanation / Answer

magnetic dipole moment of a loop = N I A

= 1250 * 7.5 * (0.4 * 0.5)

= 1875 A m2

T = M * B * sin theta = 1875 * 0.64 * sin 90

T = 1200 Nm

Direction is perpendicular to both

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