A car generator turns at 470 rpm when the engine is idling. Its 290-turn, 5.20 by...

 

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A car generator turns at 470 rpm when the engine is idling. Its 290-turn, 5.20 by 6.20 cm rectangular coil rotates in an adjustable magnetic field so that it can produce sufficient voltage even at low rpms. What is the field strength needed to produce a 23.0 V peak emf? (Discuss how this required field strength compares to those available in permanent and electromagnets.) A car generator turns at 470 rpm when the engine is idling. Its 290-turn, 5.20 by 6.20 cm rectangular coil rotates in an adjustable magnetic field so that it can produce sufficient voltage even at low rpms. What is the field strength needed to produce a 23.0 V peak emf? (Discuss how this required field strength compares to those available in permanent and electromagnets.)

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Problem Solution 1 Finding the angular velocity Convert rpm to rads 470 rpm 2 radrev 60 secmin 785 r... View the full answer