Electronics - Alternating Current vs Direct Current

Why Electronics Alternating Current vs Direct Current?

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Exercise :: Alternating Current vs Direct Current - General Questions

1. 

What are the two main applications for ac?

A. direct, pulsating
B. electric, magnetic
C. power, information
D. static, dynamic

Answer: Option C

Explanation:

No answer description available for this question. Let us discuss.

2. 

The distance that a signal's energy can travel in the time it takes for one cycle to occur is called the signal's:

A. amplitude
B. frequency
C. wavelength
D. period

Answer: Option C

Explanation:

No answer description available for this question. Let us discuss.

3. 

One oscilloscope selector knob that allows the major and minor divisions of the graticule to be used to determine a signal amplitude value is called the:

A. time/cm control
B. position control
C. intensity control
D. volts/cm control

Answer: Option D

Explanation:

No answer description available for this question. Let us discuss.

4. 

If current varies periodically from zero to a maximum, back to zero, and then repeats, the signal is:

A. direct
B. alternating
C. pulsating
D. repetitive

Answer: Option C

Explanation:

No answer description available for this question. Let us discuss.

5. 

What voltage will an ac voltmeter display?

A. rms
B. average
C. peak
D. peak-to-peak

Answer: Option A

Explanation:

No answer description available for this question. Let us discuss.

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