A. parallel
B. series
C. either A. or (b)
D. none of the above
Related Mcqs:
- The input of an A.C. circuit having power factor of 0.8 lagging is 40 kVA The power drawn by the circuit is__________?
A. 12 kW
B. 22 kW
C. 32 kW
D. 64 kW - The apparent power drawn by an A.C. circuit is 10 kVA and active power is 8 kW. The reactive power in the circuit is_________?
A. 4 kVAR
B. 6 kVAR
C. 8 kVAR
D. 16 kVAR - Pure inductive circuit takes power from the A.C. line when_________?
A. applied voltage decreases but current increases
B. applied voltage increases but current decreases
C. both applied voltage and current increase
D. both applied voltage and current decrease - In a pure inductive circuit if the supply frequency is reduced to 1/2, the current will__________?
A. be reduced by half
B. be doubled
C. be four times as high
D. be reduced to one fourth - In a circuit containing R, L and C, power loss can take place in____________?
A. C only
B. L only
C. R only
D. all above - In an A.C. circuit power is dissipated in____________?
A. resistance only
B. inductance only
C. capacitance only
D. none of the above - Power factor of an electrical circuit is equal to____________?
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 - Power factor of the following circuit will be zero__________?
A. resistance
B. inductance
C. capacitance
D. both B. and C. - The power factor at resonance in R-L- C parallel circuit is________?
A. zero
B. 0.08 lagging
C. 0.8 leading
D. unity - All definitions of power factor of a series R-L-C circuit are correct except__________?
A. ratio of net reactance and impedance
B. ratio of kW and kVA
C. ratio of J and Z
D. ratio of W and VA
