When a sine wave has a frequency of 100 Hz in 12 s it goes through 1/100 cycle 1,200 cycles 120 cycles 12 cycles TRUE ANSWER : ? YOUR ANSWER : ?
The average half-cycle value of a sine wave with a 40 V peak is 50.96 V 25.48 V 14.14 V 6.37 V TRUE ANSWER : ? YOUR ANSWER : ?
A sawtooth wave has a period of 10 ms. Its frequency is 100 Hz 50 Hz 1,000 Hz 10 Hz TRUE ANSWER : ? YOUR ANSWER : ?
A pulse waveform has a high time of 8 ms and a pulse width of 32 ms. The duty cycle is 100% 50% 1% 25% TRUE ANSWER : ? YOUR ANSWER : ?
A waveform has a baseline of 3 V, a duty cycle of 20%, and an amplitude of 8 V. The average voltage value is 1.6 V 11 V 4 V 4.6 V TRUE ANSWER : ? YOUR ANSWER : ?
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 35 V 30 V 6 V 0 V TRUE ANSWER : ? YOUR ANSWER : ?
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? Wave A lags wave B by 15°. Wave A lags wave B by 105°. Wave A leads wave B by 15°. Wave A leads wave B by 105°. TRUE ANSWER : ? YOUR ANSWER : ?
If the rms current through a 4.7 k resistor is 4 mA, the peak voltage drop across the resistor is 18.8 V 26.6 V 4 V 2.66 V TRUE ANSWER : ? YOUR ANSWER : ?
To produce an 800 Hz sine wave, a four-pole generator must be operated at 800 rps 200 rps 400 rps 1,600 rps TRUE ANSWER : ? YOUR ANSWER : ?
A square wave has a period of 60 s. The first odd harmonic is 33.33 kHz 500 kHz 50 kHz 5 kHz TRUE ANSWER : ? YOUR ANSWER : ?