If the time for one cycle is 0.2 seconds, the frequency is __.

NCCER Electrical 2 Module1

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Davian Alston
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41 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
0.2Hz
2Hz
5Hz
10Hz
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the frequency of an AC waveform that completes 30 cycles per half second?
30Hz
40Hz
50Hz
60Hz
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
If the phase angles of two sine waves are both 0 degrees, then the waves __.
have the same amplitude
are 90 degrees out of phase
have the same peak voltage
are in phase
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
A circuit has a peak voltage of 310V. What is the average voltage value?
120V
197V
220V
277V
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the current flow in a purely resistive AC circuit if the resistance is 20 ohms and the voltage is 240V?
12A
14A
18A
22A
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
One type of non-sinusoidal waveform is the
Peak wave
Sine wave
Phase angle wave
Sawtooth wave
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
The opposing force that an inductor presents to the flow of alternating current is called __.
Inductive resistance
Inductive reactance
True resistance
Inductive capacitance
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