One sine wave has a positive-going zero crossing at
20° and another sine wave has a positive going zero
crossing at 60°. What is the phase angle between
the two waveforms? ______
Two series resistors are connected to an ac source. If
there are 35 Vrms across one resistor and
55 Vrms across the other, the peak
source voltage is ___________
Determine the instantaneous value of a sine wave with a peak
voltage of 15 V at 250°?
________________
What is the angular velocity of a phasor representing a sine
wave with a frequency of 120 Hz? ____________
Determine the frequency for an angular velocity of 75 rad/s?
__________
A sinusoidal voltage has a peak value of 20 V and a frequency of
10 kHz. Determine the value of the voltage at 35 μs.
__________
If the sine wave has a positive-going zero crossing at
0°, how many seconds after the zero crossing does sine
wave B reach 4.5 V if f = 2.5 kHz? ____________