Alternating Current and Voltage 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 leads wave B by 105°. 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°. Wave A lags wave B by 15°. Wave A lags wave B by 105°. Wave A leads wave B by 15°. ANSWER DOWNLOAD EXAMIANS APP
Alternating Current and Voltage A 20 kHz pulse waveform consists of pulses that are 15 s wide. The duty cycle is 30% is 100% cannot be determined is 1% is 30% is 100% cannot be determined is 1% ANSWER DOWNLOAD EXAMIANS APP
Alternating Current and Voltage If the rms current through a 4.7 k resistor is 4 mA, the peak voltage drop across the resistor is 2.66 V 18.8 V 26.6 V 4 V 2.66 V 18.8 V 26.6 V 4 V ANSWER DOWNLOAD EXAMIANS APP
Alternating Current and Voltage To produce an 800 Hz sine wave, a four-pole generator must be operated at 400 rps 200 rps 800 rps 1,600 rps 400 rps 200 rps 800 rps 1,600 rps ANSWER DOWNLOAD EXAMIANS APP
Alternating Current and Voltage A signal with a 400 s period has a frequency of 400 Hz 2,500 Hz 25,000 Hz 250 Hz 400 Hz 2,500 Hz 25,000 Hz 250 Hz ANSWER DOWNLOAD EXAMIANS APP
Alternating Current and Voltage A square wave has a period of 60 s. The first odd harmonic is 500 kHz 50 kHz 5 kHz 33.33 kHz 500 kHz 50 kHz 5 kHz 33.33 kHz ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS