The period of a sine wave is 1/50 seconds. Its frequency? Mark as favorite Copy Link 40 Hz 50 Hz 20 Hz 30 Hz Check Answer
The phase difference between them is ….. degrees? Mark as favorite Copy Link 60 105 15 50 Check Answer
In a pure resistive circuit? Mark as favorite Copy Link current can lead or lag the volt age by 90 current leads the voltage by 90ยบ current lags behind the voltage by 90 current is in phase with the voltage Check Answer
In the R-L-C circuit containing R = 4.5 W, L 0.006 H, C = 0.6 F the power factor will be? Mark as favorite Copy Link leading unity zero lagging Check Answer
The input of an A.C. circuit having power factor of 0.8 lagging is 40 kVA. The power drawn by the circuit is? Mark as favorite Copy Link 32 kW 64 Kw 12 kW 22 kW Check Answer
In a loss-free R-L-C circuit the transient current is? Mark as favorite Copy Link sinusoidal non-oscillating oscillating square wave Check Answer
A sine wave has a frequency of 50 Hz. Its angular frequency is …… radian/second? Mark as favorite Copy Link 25 ? 5 ? 100 ? 50 ? Check Answer
In A.C, circuits, laminated iron is invariably used in order to? Mark as favorite Copy Link make assembly cheap and easier reduce circuit permeability reduce eddy current loss increase heat radiation Check Answer
The reactance offered by a capacitor to alternating current of frequency 50 Hz is 20?. If frequency is increased to 100 Hz, reactance becomes …. ohms? Mark as favorite Copy Link 10 15 2.5 5 Check Answer
For the same peak. value which of the following waves will have the highest r.m.s. value? Mark as favorite Copy Link triangular wave sine wave square wave half wave rectified sine wave Check Answer