You wish to make a 1200 volt generator (peak voltage). Youhave a total of 150 me

Question

You wish to make a 1200 volt generator (peak voltage). Youhave a total of 150 meters of wire which you wrap around a circularform with a 40 cm circumference using all of the wire. The coilwill rotate in a 2 tesla magnetic field. What will be thefrequency of the alternating current generated (f=/2pi).(note that the peak voltage is dependent on the angular frequencyof the rotation) a) 12 Hz

b) 60 Hz

c) 20 Hz

d) 120 Hz You wish to make a 1200 volt generator (peak voltage). Youhave a total of 150 meters of wire which you wrap around a circularform with a 40 cm circumference using all of the wire. The coilwill rotate in a 2 tesla magnetic field. What will be thefrequency of the alternating current generated (f=/2pi).(note that the peak voltage is dependent on the angular frequencyof the rotation) a) 12 Hz

b) 60 Hz

c) 20 Hz

d) 120 Hz

Explanation / Answer

We know the formula for the induced emf in the circular coilis                              = NBA                                = NB(r2) Here N is the number of turns in the coil          B is themagnetic field strength          r is theradius of the coil          =2f, here f is the frequency

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