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_________?

Related Mcqs:

1. 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

2. The ratio of active power to apparent power is known as factor__________?

   A. demand
   B. load
   C. power
   D. form

3. The product of apparent power and cosine of the phase angle between circuit voltage and current is

   A. true power
   B. reactive power
   C. volt-amperes
   D. instantaneous power

4. In a series resonant circuit, the impedance of the circuit is___________?

   A. minimum
   B. maximum
   C. zero
   D. none of the above

5. All the rules and laws of D.C. circuit also apply to A.C. circuit containing_____________?

   A. capacitance only
   B. inductance only
   C. resistance only
   D. all above

6. If resistance is 20 Q. and inductance is 27 in a R-L series circuit, then time constant of this circuit will be________?

   A. 0.001 s
   B. 0.1 s
   C. 10 s
   D. 100 s

7. Which of the following circuit component opposes the change in the circuit voltage ?

   A. Inductance
   B. Capacitance
   C. Conductance
   D. Resistance

8. The power consumed in a circuit element will be least when the phase difference between the current and voltage is________?

   A. 180″
   B. 90°
   C. 60°
   D. 0°

9. The power factor of a D.C. circuit is always__________?

   A. less than unity
   B. unity
   C. greater than unity
   D. zero

10. In an A.C. circuit power is dissipated in____________?

    A. resistance only
    B. inductance only
    C. capacitance only
    D. none of the above