1. In both induction and synchronous ac motors
2. What is the average voltage when a rectangular wave’s base line voltage is 20 V, its peak-to-peak voltage is 50 V, and its duty cycle is 20%?
3. What is the instantaneous peak voltage at 250° on a 6 V peak sine wave?
4. A rectangular wave that has a duty cycle of 50% could be called a
5. What is the fourth harmonic of a fundamental frequency of 400 Hz?
6. Most practical alternators generate electricity from
7. The effective value of a sine wave is equal to
8. A pulse waveform has a high time of 8 ms and a pulse width of 32 ms. The duty cycle is
9. A half-cycle average voltage of 12 V is equal to what rms voltage?
10. A single-phase induction motor
Question 1 of 10
