The best place to install a capacitor is___________?

Related Mcqs:

1. 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

2. The reactance offered by a capacitor to alternating current of frequency 50 Hz is 20 Q. If frequency is increased to 100 Hz, reactance becomes_______ohms?

   A. 2.5
   B. 5
   C. 10
   D. 15

3. A pure capacitor connected across an A.C. voltage consumed 50 W. This is due to________?

   A. the capacitive reactance in ohms
   B. the current flowing in capacitor
   C. the size of the capacitor being quite big
   D. the statement is incorrect

4. The peak value of a sine wave is 200 V. Its average value is___________?

   A. 127.4 V
   B. 141.4 V
   C. 282.8 V
   D. 200V

   Updated by: Ihtisham Ul Haq

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

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

6. The period of a wave is___________?

   A. the same as frequency
   B. time required to complete one cycle
   C. expressed in amperes
   D. none of the above

7. The voltage of domestic supply is 220V. This figure represents__________?

   A. mean value
   B. r.m.s. value
   C. peak value
   D. average value

8. In a highly capacitive circuit the__________?

   A. apparent power is equal to the actual power
   B. reactive power is more than the apparent power
   C. reactive power is more than the actual power
   D. actual power is more than its reactive power

9. The frequency of domestic power supply in Pakistan is_________?

   A. 200 Hz
   B. 100 Hz
   C. 60 Hz
   D. 50 Hz

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

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