Electromagnetic Induction 4.0 / 5 based on 1 rating ? PhysicsElectromagnetic InductionA2/A-levelAQA Created by: LZ95Created on: 17-04-14 21:31 6723451 Across 1. What are the emf and current like at low speed? (7, 4, 3, 3) 5. What is the unit for magnetic flux? (5, 2) Down 2. Which way does the current pass in a South Pole? (9) 3. What does the changing magnetic field produce in the secondary coil? (2, 11, 3) 4. Which way does the current pass in a North Pole? (13) 6. What are the emf and current like at high speed? (3, 4, 7, 3) 7. Why is the induced emf referred to as the 'back emf'? (2, 2, 4, 7, 2)
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