A. inductive reactance
B. capacitive reactance
C. resistance
D. capacitance
Ohm is unit of all of the following except___________? Read More »
A.C. Fundamentals, Circuits and Circuit Theory A. 60 sin 25 t
B. 60 sin 50 t
C. 84.84 sin 3141
D. 42.42 sin 314 t
The equation of 50 Hz current sine wave having r.m.s. value of 60 A is____________? Read More »
A.C. Fundamentals, Circuits and Circuit Theory A. less than unity
B. unity
C. greater than unity
D. zero
The power factor of a D.C. circuit is always__________? Read More »
A.C. Fundamentals, Circuits and Circuit Theory A. be reduced by half
B. be doubled
C. be four times as high
D. be reduced to one fourth
A. be reduced by half
B. be doubled
C. be four times at high
D. be reduced to one fourth
A. the current through the resistance is more
B. the current through the resistance is less
C. both resistance and inductance carry equal currents
D. none of the above
A. true power
B. reactive power
C. volt-amperes
D. instantaneous power
A. the capacitive reactance in ohms
B. the current flowing in capacitor
C. the size of the capacitor being quite big
D. the statement is incorrect
A pure capacitor connected across an A.C. voltage consumed 50 W. This is due to________? Read More »
A.C. Fundamentals, Circuits and Circuit Theory A. apparent power
B. true power
C. reactive power
D. none of the above
A. 220 V
B. 220V3V
C. 220/V3 V
D. none of the above
