Alternating Current and Voltage When a sine wave has a frequency of 100 Hz in 12 s it goes through 12 cycles 120 cycles 1,200 cycles 1/100 cycle 12 cycles 120 cycles 1,200 cycles 1/100 cycle 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 100% is 1% cannot be determined is 30% is 100% is 1% cannot be determined is 30% ANSWER DOWNLOAD EXAMIANS APP
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 105°. Wave A lags wave B by 15°. Wave A leads wave B by 15°. Wave A leads wave B by 105°. Wave A lags wave B by 105°. Wave A lags wave B by 15°. Wave A leads wave B by 15°. ANSWER DOWNLOAD EXAMIANS APP
Alternating Current and Voltage To produce an 800 Hz sine wave, a four-pole generator must be operated at 1,600 rps 400 rps 800 rps 200 rps 1,600 rps 400 rps 800 rps 200 rps ANSWER DOWNLOAD EXAMIANS APP
Alternating Current and Voltage The average half-cycle value of a sine wave with a 40 V peak is 14.14 V 50.96 V 6.37 V 25.48 V 14.14 V 50.96 V 6.37 V 25.48 V ANSWER DOWNLOAD EXAMIANS APP
Alternating Current and Voltage A pulse waveform has a high time of 8 ms and a pulse width of 32 ms. The duty cycle is 100% 25% 1% 50% 100% 25% 1% 50% ANSWER DOWNLOAD EXAMIANS APP
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