A. peak value to r.m.s. value
B. r.m.s. value to average value
C. average value to r.m.s. value
D. none of the above
Related Mcqs:
- Form Factor is the ratio of__________?
A. average value/r.m.s. value
B. average value/peak value
C. r.m.s. value/average value
D. r.m.s. value/peak value - Form factor for a sine wave is________?
A. 1.414
B. 0.707
C. 1.11
D. 0.637 - 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 unity
A. inductance
B. capacitance
C. resistance
D. both A. and B. - Capacitors for power factor correction are rated in_________?
A. kW
B. kVA
C. kV
D. kVAR - Power factor of the following circuit will be zero__________?
A. resistance
B. inductance
C. capacitance
D. both B. and C. - Power factor of the system is kept high__________?
A. to reduce line losses
B. to maximise the utilization of the capacities of generators, lines and transformers
C. to reduce voltage regulation of the line
D. due to all above reasons - The power factor at resonance in R-L- C parallel circuit is________?
A. zero
B. 0.08 lagging
C. 0.8 leading
D. unity - The power factor of a D.C. circuit is always__________?
A. less than unity
B. unity
C. greater than unity
D. zero - Power factor of electric bulb is__________?
A. zero
B. lagging
C. leading
D. unity
