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
Related Mcqs:
- 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 - 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 - Power factor of an inductive circuit is usually improved by connecting capacitor to it in____________?
A. parallel
B. series
C. either A. or (b)
D. none of the above - Pure inductive circuit____________?
A. consumes some power on average
B. does not take power at all from a line
C. takes power from the line during some part of the cycle and then returns back to it during other part of the cycle
D. none of the above - In a pure inductive circuit___________?
A. the current is in phase with the voltage
B. the current lags behind the voltage by 90°
C. the current leads the voltage by 90°
D. the current can lead or lag by 90° - 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 - An A.C. voltage is impressed across a pure resistance of 3.5 ohms in parallel with a pure inductance of impedance of 3.5 ohms?
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 - In a pure capacitive 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 at high
D. be reduced to one fourth - Time constant of an inductive circuit___________?
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 - In a purely inductive circuit__________?
A. actual power is zero
B. reactive power is zero
C. apparent power is zero
D. none of above is zero
