3_Chapter 20 HomeworkCH20 Induced Voltages and Inductance

3_Chapter 20 HomeworkCH20 Induced Voltages and Inductance -...

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Induced Voltages and Inductance 177 Answers to Even Numbered Problems 2. (a) (b) 7 1.00 10 T m ×⋅ 2 2 8 8.66 10 T m × ( c ) 0 4. zero 6. 52 2.96 10 T m 8. 0.10 mV 10. 34 mV 12. 52.0 T µ 14. (a) (b) 7 1.88 10 T m 2 8 6.28 10 V × 16. 8.8 A 18. 1.00 m s 20. 2.87 mV 22. 2.8 mV 24. (b) Larger R makes current smaller, so the loop must travel faster to maintain equality of magnetic force and weight. (c) The magnetic force is proportional to the product of field and current, while the current is itself proportional to the field. If
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