The frequency of domestic power supply in Pakistan is_________?
The frequency of domestic power supply in Pakistan is_________?
A. 200 Hz
B. 100 Hz
C. 60 Hz
D. 50 Hz
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Capacitors for power factor correction are rated in_________?
Capacitors for power factor correction are rated in_________?A. kW
B. kVA
C. kV
D. kVARThe transient currents are associated with the____________?
The transient currents are associated with the____________?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 circuitThe square waveform of current has following relation between r.m.s. value and average value?
The square waveform of current has following relation between r.m.s. value and average value?A. r.m.s. value is equal to average value
B. r.m.s. value of current is greater than average value
C. r.m.s. value of current is less than average value
D. none of the aboveThe time constant of a series R-C circuit is given by____________?
The time constant of a series R-C circuit is given by____________?A. R/C
B. RC2
C. RC
D. R2CThe inductance of a coil can be increased by_________?
The inductance of a coil can be increased by_________?A. increasing core length
B. decreasing the number of turns
C. decreasing the diameter of the former
D. choosing core material having high relative permeabilityThe input of an A.C. circuit having power factor of 0.8 lagging is 40 kVA The power drawn by the circuit is__________?
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