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Alternating Current and Voltage

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 100%
is 1%

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Alternating Current and Voltage
If a sine wave goes through 10 cycles in 20 s, the period is

2 s
100 s
20 s
4 s

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Alternating Current and Voltage
A sine wave of 15 kHz is changing at a faster rate than a sine wave with a frequency of

1.3 MHz
18 kHz
25 kHz
12 kHz

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Alternating Current and Voltage
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

1.65 V
10.60 V
5.93 V
16.54 V

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Alternating Current and Voltage
A waveform has a baseline of 3 V, a duty cycle of 20%, and an amplitude of 8 V. The average voltage value is

4.6 V
1.6 V
4 V
11 V

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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

4 V
26.6 V
2.66 V
18.8 V

ANSWER DOWNLOAD EXAMIANS APP
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