Electrical Measurements Flashcards
1
Q
An AC ammeter indicates:
A
Effective (RMS) values of current
2
Q
By what factor must the voltage of an AC circuit, as indicated on the scale of an AC voltmeter, be multiplied to obtain the peak voltage value?
A
1.414
3
Q
What is the RMS voltage at a common household electrical power outlet?
A
117-V AC
4
Q
What is the easiest voltage amplitude to measure by viewing a pure sine wave signal on an oscilloscope?
A
peak-to-peak
5
Q
By what factor must the voltage measured in an AC circuit, as indicated on the scale of an AC voltmeter, be multiplied to obtain the average voltage value?
A
0.9
6
Q
What is the peak voltage at a common household electrical outlet?
A
165.5 volts
