A. Apparent power is zero
B. Relative power is.zero
C. Actual power of the circuit is zero
D. Any capacitance even if present in the circuit will not be charged
Related Mcqs:
- Which of the following circuit elements will oppose the change in circuit current ?
A. Capacitance
B. Inductance
C. Resistance
D. All of the above - Both the number of turns and the core length of an inductive coil are doubled. Its self-inductance will be_____________?
A. unaffected
B. doubled
C. halved
D. quadrupled - A coil with negligible resistance has 50V across it with 10 mA. The inductive reactance is_____________?
A. 50 ohms
B. 500 ohms
C. 1000 ohms
D. 5000 ohms - Non inductive resistances are used in decreasing______________?
A. Mutual inductance
B. Self inductance
C. Magnetic fields
D. Heating effect - Which circuit element(s) will oppose the change in circuit current ?
A. Resistance only
B. Inductance only
C. Capacitance only
D. Inductance and capacitance - Which of the following circuit element stores energy in the electromagnetic field ?
A. Inductance
B. Condenser
C. Variable resistor
D. Resistance - The self-inductance of the coil may be defined as equal to the e.m.f. induced in volts when the current in the circuit changes at the rate of unit Weber turns
A. Yes
B. No - emf induced in a circuit according to Faradays law depends on the_____________?
A. maximum magnetic flux
B. rate of change of magnetic flux
C. change in magnetic flux
D. initial magnetic flux - Inductors acts as a short circuit for_______________?
A. AC
B. DC
C. Both A and B
D. none of these - Which of the following works on torque on the current carrying conductor placed in magnetic field ?
A. galvanometer
B. ammeter
C. voltmeter
D. all of the above
