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Ch. 21 Electromagnetic Induction and Faraday's Law Question 4 Problems: 10 Answer in terms of the current in the solenoid: same or opposite and explain why. 11 Be sure to include a diagram that clearly shows the original direction of B (before it changes direction) and the direction of the induced current. 17 Motional EMF 35 Simple transformer 37 Transformers, power lines and power losses 40 Self-inductance |