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A toroidal solenoid has 540 turns, cross-sectional area 6.80 cm^2, and mean radius 4.20 cm. Calcualte...

A toroidal solenoid has 540 turns, cross-sectional area 6.80 cm^2, and mean radius 4.20 cm.

Calcualte the coil's self-inductance.

If the current decreases uniformly from 5.00 A to 2.00 A in 3.00 ms, calculate the self-induced emf in the coil.

Please help with this homework question. Thank you very much.

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Answer #1

Here we apply formula for magnetic field of toroid and definition of magnetic flux, definition of self inductance and Faraday's law of electromagnetic induction.

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