(B)Element 3-12 WAVEFORMS Flashcards
1
Q
At pi/3 radians, what is the amplitude of a sine-wave having a peak value of 5 volts
A
+4.3 volts
2
Q
at 150 degrees, what is the amplitude of a sine wave having a peak value of 5 volts?
A
+2.5 volts
3
Q
at 240 degrees, what is the amplitude of a sine wave having a peak value of 5 volts?
A
-4.3 volts
4
Q
what is the equivalent to the root-mean-square vale of an AC voltage?
A
the dc voltage causing the same heating in a given resistor as the RMS AC voltage of the same value
5
Q
What is the RMS value of a 340 volt peak to peak sine wave?
A
120 volts
6
Q
determine the phase relationship between the two signals shown in figure 3b3
A
b is lagging a by 90 degrees
