Question

A generator is to be built so that it runs at a f = 60.0-Hz frequency and deliver a peak output of 5900 Volts.

a) What is the rms voltage of this generator?

b) If its coil has 300 turns each of radius 50 cm, what is the area per turn?

c) What is the magnitude of the magnetic field needed to meet the specifications? Suppose the generator is to rely on the Earth’s B field instead. The field has strength B = 65 μT at the generator’s location.

d) If you let the radius of the coils remain the same, how many turns are now needed?

e) If instead you let N remain the same, what is the radius per turn needed? What is more feasible, changing N or changing r? Is it practical to use the terrestrial B field in this fashion?

Answer 1