1. If the rms current through a 4.7 k resistor is 4 mA, the peak voltage drop across the resistor is
2. A pulse waveform has a high time of 8 ms and a pulse width of 32 ms. The duty cycle is
3. A 20 kHz pulse waveform consists of pulses that are 15 s wide. The duty cycle
4. If the peak of a sine wave is 13 V, the peak-to-peak value is
5. A sinusoidal current has an rms value of 14 mA. The peak-to-peak value is
6. A signal with a 400 s period has a frequency of
7. A sine wave of 15 kHz is changing at a faster rate than a sine wave with a frequency of
8. The average value of a 12 V peak sine wave over one complete cycle is
9. When a sine wave has a frequency of 100 Hz in 12 s it goes through
10. A sawtooth wave has a period of 10 ms. Its frequency is
11. Two series resistors are connected to an ac source. If there are 7.5 V rms across one resistor and 4.2 V rms across the other, the peak source voltage is
12. If a sine wave goes through 10 cycles in 20 s, the period is
13. A square wave has a period of 60 s. The first odd harmonic is
14. Sine wave A has a positive-going zero crossing at 45°. Sine wave B has a positive-going zero crossing at 60°. Which of the following statements is true?
15. A phasor represents
16. A sine wave with a period of 4 ms is changing at a faster rate than a sine wave with a period of
17. A waveform has a baseline of 3 V, a duty cycle of 20%, and an amplitude of 8 V. The average voltage value is
18. A sine wave with an rms value of 12 V is riding on a dc level of 18 V. The maximum value of the resulting waveform is
19. If the rms current through a 6.8 k resistor is 8 mA, the rms voltage drop across the resistor is
20. The average half-cycle value of a sine wave with a 40 V peak is
21. The duty cycle of a pulse waveform with a pulse width of 10 µs and a period of 100 µs is 25%.
22. The angular position of a phasor represents the angle of the sine wave with respect to a reference.
23. The designation rms means repetitions measured per second.
24. The unit of frequency is the hertz.
25. Average value of a sine wave is 0.707 times the peak value.