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Electronics - Alternating Current vs Direct Current

Exercise : Alternating Current vs Direct Current - General Questions
16.
Power companies supply ac, not dc, because:
it is easier to transmit ac
there is no longer a need for dc
dc is more dangerous
there are not enough batteries
Answer: Option
Explanation:
No answer description is available. Let's discuss.
17.
If a waveform period is determined to be 10 microseconds in duration, what is the frequency of the signal?
100 Hz
1000 Hz
10 kHz
100 kHz
Answer: Option
Explanation:
No answer description is available. Let's discuss.
18.
The phase difference between sine waves of different frequencies is:
equal to their frequency differences
the difference in their fixed time displacement
the same throughout time
constantly changing
Answer: Option
Explanation:
No answer description is available. Let's discuss.
19.
If a sine wave signal is 100 mV peak-to-peak, how many volts would be measured by a voltmeter?
14.14 mV
35.4 mV
63.7 mV
70.7 mV
Answer: Option
Explanation:
No answer description is available. Let's discuss.
20.
What term expresses the frequency of a rectangular wave?
Hz
period
PRF
PRT
Answer: Option
Explanation:
No answer description is available. Let's discuss.
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