A circular coil of 300 turns and radius 10 cm is connected to a current integrator....

A circular coil of 300 turns and radius 10 cm is connected to a current integrator. The total resistance of the circuit is 45 Ω. The plane of the coil is originally aligned perpendicular to the earth’s magnetic field at some point. When the coil is rotated through 90◦ , the charge that passes through the current integrator is measured to be 9.2 µC. Calculate the magnitude of the earth’s magnetic field at that point. Answer in units of µT

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genius_generous answered 1 year ago

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