EEE :: A.C Fundamentals, Circuits and Circuit Theory
- The peak value of a sine wave is 200 V. Its average value is
- The product of apparent power and cosine of the phase angle between circuit voltage and current is
- Which of the following waves has the highest value of peak factor ?
- In a purely inductive circuit
- Pure inductive circuit takes power from the A.C. line when
- The reactance offered by a capacitor to alternating current of frequency 50 Hz is 20 Q. If frequency is increased to 100 Hz, reactance becomes __________ ohms.
- Time constant of a circuit is the time in seconds taken after the application of voltage to each
- Magnitude of current at resonance in R-L-C circuit
- Inductance of a coil Varies
- Two waves of the same frequency have opposite phase when the phase angle between them is