Form Factor is the ratio of__________?

Related Mcqs:

1. The form factor is the ratio of_______?

   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

2. Form factor for a sine wave is________?

   A. 1.414
   B. 0.707
   C. 1.11
   D. 0.637

3. Capacitive susceptance is a measure of__________?

   A. reactive power in a circuit
   B. the extent of neutralisation of reactive power in a circuit
   C. a purely capacitive circuit’s ability to pass current
   D. a purely capacitive circuit’s ability to resist the flow of current

4. In R-L-C series resonant circuit magnitude of resonance frequency can be changed by changing the value of__________?

   A. R only
   B. L only
   C. C only
   D. LorC
   E. R,LorC

5. 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

6. Capacitors for power factor correction are rated in_________?

   A. kW
   B. kVA
   C. kV
   D. kVAR

7. Power factor of the following circuit will be zero__________?

   A. resistance
   B. inductance
   C. capacitance
   D. both B. and C.

8. The power factor at resonance in R-L- C parallel circuit is________?

   A. zero
   B. 0.08 lagging
   C. 0.8 leading
   D. unity

9. All definitions of power factor of a series R-L-C circuit are correct except__________?

   A. ratio of net reactance and impedance
   B. ratio of kW and kVA
   C. ratio of J and Z
   D. ratio of W and VA

10. Power factor of electric bulb is__________?

    A. zero
    B. lagging
    C. leading
    D. unity