A toroidal solenoid has 500 turns, cross-sectional area
Chapter 30, Problem 30.8(choose chapter or problem)
A toroidal solenoid has 500 turns, cross-sectional area and mean radius 4.00 cm. (a) Calculate the coils selfinductance. (b) 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. (c) The current is directed from terminal a of the coil to terminal b. Is the direction of the induced emf from a to b or from b to a?
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