A flat circular coil with 25 turns and a radius of 5 cm


A flat circular coil with 25 turns and a radius of 5 cm lies in the plane of the paper. A changing magnetic field is present in adirection perpendicular to and coming out of the plane of the paper. The resistance of the coil is 0.5 ohms and a current of 50mA is observed to be flowing clockwise in the coil.

a. What is the rate of change of the magnetic field(ΔB/Δt)?
b. Is the magnitude of the magnetic field increasing ordecreasing?

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Physics: A flat circular coil with 25 turns and a radius of 5 cm
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