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A circular coil of 20 turns and a radius of 10 cm is placed in a uniform magnetic field of 0.10 T…
A circular coil of 20 turns and a radius of 10 cm is placed in a uniform magnetic field of 0.10 T normal to the plane of the coil. If the current in the coil is 5 A, what will be:
(a)
the total torque on the coil?
(b)
the total force on the coil?
(c)
average force on each electron in the coil due to the magnetic field. (The coil is made of copper wire of a cross-sectional area of $10^{-5}\text{ m}^2$, and the free electron density in copper is given to be about $10^{29}\text{ m}^{-3}$).
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From ISC 2025 Practice Physics, question 71.