ALTERNATING CURRENT AND VOLTAGE QUIZ

A signal with a 400 s period has a frequency of

250 Hz

25,000 Hz

400 Hz

2,500 Hz

TRUE ANSWER : ?
YOUR ANSWER : ?

The average value of a 12 V peak sine wave over one complete cycle is

1.27 V

0 V

7.64 V

6.37 V

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%

25%

1%

TRUE ANSWER : ?
YOUR ANSWER : ?

A sine wave of 15 kHz is changing at a faster rate than a sine wave with a frequency of

12 kHz

25 kHz

1.3 MHz

18 kHz

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

0 V

6 V

TRUE ANSWER : ?
YOUR ANSWER : ?

If the rms current through a 6.8 k resistor is 8 mA, the rms voltage drop across the resistor is

5.44 V

7.07 V

8 V

54.4 V

TRUE ANSWER : ?
YOUR ANSWER : ?

If a sine wave goes through 10 cycles in 20 s, the period is

20 s

100 s

4 s

2 s

TRUE ANSWER : ?
YOUR ANSWER : ?

If the rms voltage drop across a 15 k resistor is 16 V, the peak current through the resistor is

1 mA

15 mA

1.5 mA

10 mA

TRUE ANSWER : ?
YOUR ANSWER : ?

A square wave has a period of 60 s. The first odd harmonic is

5 kHz

50 kHz

500 kHz

33.33 kHz

TRUE ANSWER : ?
YOUR ANSWER : ?

If the peak of a sine wave is 13 V, the peak-to-peak value is

26 V

13 V

6.5 V

None of these

TRUE ANSWER : ?
YOUR ANSWER : ?

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