Category: A.C. Fundamentals, Circuits and Circuit Theory

A. zero
B. 0.08 lagging
C. 0.8 leading
D. unity

A. capacitance is less and frequency of supply is less
B. capacitance is less and frequency of supply is more
C. capacitance is more and frequency of supply is less
D. capacitance is more and frequency of supply is more

A. changes in the stored energy in the inductors and capacitors
B. impedance of the circuit
C. applied voltage to the circuit
D. resistance of the circuit

A. a sinusoid of the same frequency
B. a sinusoid of half the original frequency
C. a sinusoid of double the frequency
D. not a sinusoid

A. 220 V
B. 220V3V
C. 220/V3 V
D. none of the above

A. 1.414
B. 0.707
C. 1.11
D. 0.637

A. increases with increase of inductance and decrease of resistance
B. increases with the increase of inductance and the increase of resistance
C. increases with decrease of inductance and decrease of resistance
D. increases with decrease of inductance and increase of resistance

A. 0.05 s
B. 0.005 s
C. 0.0005 s
D. 0.5 s

A. average voltage
B. r.m.s. voltage
C. peak voltage
D. none of the above

A. R/Z
B. cosine of phase angle difference be-tween current and voltage
C. kW/kVA
D. ratio of useful current to total cur¬rent Iw/I
E. all of these