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A Circular 20-Turn Coil with a Radius of 10 Cm μ\mu

question 38

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   A circular 20-turn coil with a radius of 10 cm carries a current of 3 A. It lies in the xy plane in a uniform magnetic field   = 0.4 T   + 0.3 T   . The coil rotates so that its magnetic moment,  \mu , is aligned with the magnetic field. The potential energy of the system when the coil's magnetic moment is aligned with the field is A)  0.282 J B)  -0.461 J C)  0.461 J D)  -0.282 J E)  -0.564 J A circular 20-turn coil with a radius of 10 cm carries a current of 3 A. It lies in the xy plane in a uniform magnetic field    A circular 20-turn coil with a radius of 10 cm carries a current of 3 A. It lies in the xy plane in a uniform magnetic field   = 0.4 T   + 0.3 T   . The coil rotates so that its magnetic moment,  \mu , is aligned with the magnetic field. The potential energy of the system when the coil's magnetic moment is aligned with the field is A)  0.282 J B)  -0.461 J C)  0.461 J D)  -0.282 J E)  -0.564 J = 0.4 T    A circular 20-turn coil with a radius of 10 cm carries a current of 3 A. It lies in the xy plane in a uniform magnetic field   = 0.4 T   + 0.3 T   . The coil rotates so that its magnetic moment,  \mu , is aligned with the magnetic field. The potential energy of the system when the coil's magnetic moment is aligned with the field is A)  0.282 J B)  -0.461 J C)  0.461 J D)  -0.282 J E)  -0.564 J + 0.3 T    A circular 20-turn coil with a radius of 10 cm carries a current of 3 A. It lies in the xy plane in a uniform magnetic field   = 0.4 T   + 0.3 T   . The coil rotates so that its magnetic moment,  \mu , is aligned with the magnetic field. The potential energy of the system when the coil's magnetic moment is aligned with the field is A)  0.282 J B)  -0.461 J C)  0.461 J D)  -0.282 J E)  -0.564 J . The coil rotates so that its magnetic moment, μ\mu , is aligned with the magnetic field. The potential energy of the system when the coil's magnetic moment is aligned with the field is


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