AC Circuit - R-L-C Circuit objective questions (mcq) and answers

6.  In a loss free R-L-C circuit the transient current is

   A. Oscillating

   B. Square wave

   C. Sinusoidal

   D. Non-oscillating

7.  The power factor at resonance in R-L-C parallel circuit is

   A. Zero

   B. 0.08 lagging

   C. 0.8 leading

   D. Unity

8.  Magnitude of current at resonance in R-L-C circuit

   A. Depends upon the magnitude of R

   B. Depends upon the magnitude of L

   C. Depends upon the magnitude of C

   D. Depends upon the magnitude of R, L and C

9.  In a R-L-C circuit

   A. Power is consumed in resistance and is equal to a I2R

   B. Exchange of power takes place between Inductor and supply line

   C. Exchange of power takes place between Capacitor and supply line

   D. Exchange of power does not take place between resistance and the supply line

   E. All of the above

10.  The quality factor of R-L-C circuit will increase if

   A. R increases

   B. R decreases

   C. Impedance increases

   D. Voltage increases

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