Alternating Current and Voltage A signal with a 400 s period has a frequency of 400 Hz 250 Hz 25,000 Hz 2,500 Hz 400 Hz 250 Hz 25,000 Hz 2,500 Hz 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 One sine wave has a positive-going zero crossing at 15° and another sine wave has a positive-going zero crossing at 55°. The phase angle between the two waveforms is 0° 40° None of these 45° 0° 40° None of these 45° ANSWER DOWNLOAD EXAMIANS APP
Alternating Current and Voltage A 20 kHz pulse waveform consists of pulses that are 15 s wide. The duty cycle cannot be determined is 30% is 1% is 100% cannot be determined is 30% is 1% is 100% ANSWER DOWNLOAD EXAMIANS APP
Alternating Current and Voltage If the rms voltage drop across a 15 k resistor is 16 V, the peak current through the resistor is 15 mA 1.5 mA 1 mA 10 mA 15 mA 1.5 mA 1 mA 10 mA ANSWER DOWNLOAD EXAMIANS APP
Alternating Current and Voltage If a sine wave goes through 10 cycles in 20 s, the period is 20 s 100 s 2 s 4 s 20 s 100 s 2 s 4 s ANSWER DOWNLOAD EXAMIANS APP
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