A. have a high voltage developed across each inductive and capacitive section
B. have a high impedance
C. act like a resistor of low value
D. have current in each section equal to the line current
Related Mcqs:
- The power factor at resonance in R-L- C parallel circuit is________?
A. zero
B. 0.08 lagging
C. 0.8 leading
D. unity - The series and parallel resonance on L-C circuit’ differs in that_________?
A. series resistance needs a low-resistance source for sharp rise in current
B. series resonance needs a high-resistance source for sharp increase in current
C. parallel resonance needs a low-resistance source for a sharp in¬crease in impedance
D. parallel resonance needs a low-resistance source for a sharp rise in line current - The purpose of a parallel circuit resonance is to magnify________?
A. current
B. voltage
C. power
D. frequency - 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 - 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 - 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 - At _______ frequencies the parallel R-L circuit behaves as purely resistive
A. low
B. very low
C. high
D. very high - Which of the following refers to a parallel circuit ?
A. The current through each element is same
B. The voltage across element is in proportion to it’s resistance value
C. The equivalent resistance is greater than any one of the resistors
D. The current through any one element is less than the source current - In a parallel R-C circuit, the current always________the applied voltage?
A. lags
B. leads
C. remains in phase with
D. none of the above - 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
