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Toroidal solenoid #1 has mean radius r1 = 40.0 cm, and cross-sectional area
A1 16.0 cm2. It is wound uniformly with N1 = 1000 turns of wire. Toroidal
solenoid #2 having N2 = 100 turns of wire is wound uniformly around # 1.
%3D
The cross-sectional area of toroidal solenoid # 2 is 22.0 cm2. If the current
through the windings of toroidal solenoid # 1 is changing at a rate of 1000
A/s, what is the Emf induced in toroidal solenoid # 2 (in V)? HINT and

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