Chapter 2, Section 3

Question 1

What is a cycle of AC voltage?

Answer 1

One complete positive and negative cycle.

Question 2

What is the unit of measurement for frequency?

Answer 2

Hertz.

Question 3

What is the formula for the determination of frequency?

Answer 3

f = (1 / time period)

Question 4

What device is used to plot the graphical representation of the sine wave?

Answer 4

Oscilloscope.

Question 5

Name three other types of electrical waveforms.

Answer 5

Square wave, triangular wave, sawtooth wave.

Question 6

How would the frequency 123.00 MHz be rewritten out in words?

Answer 6

One hundred twenty-three megahertz.

Question 7

If time or rate of wave form is frequency, how is the amplitude of an AC signal measured?

Answer 7

Peak voltage.

Question 8

What is the total height of amplitude in an AC waveform called?

Answer 8

Peak-to-peak voltage.

Question 9

What is the total tru average voltage for an AC waveform?

Answer 9

Zero (since the average voltage over a cycle is zero).

Question 10

How is RMS determined in an AC waveform?

Answer 10

Square root of the mean of the squares of the instantaneous values.