Question

You're an electrical engineer designing an alternator (the generator that charges a car's battery). Mechanical engineers specify a 10-cm -diameter rotating coil, and you determine that you can fit 250 turns in this coil. To charge a 12-V battery, you need a peak output of 14 V when the alternator is rotating at 2000 rpm.

Part A What do you specify for the alternator's magnetic field? Express your answer to two significant figures and include the appropriate units. B =

Answer 1

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