A. Mutual inductance
B. Self inductance
C. Magnetic fields
D. Heating effect
Related Mcqs:
- 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 - For a purely inductive circuit which of the following is true ?
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 - 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 - An electric current induced within the body of a conductor when that conductor either moves through a non uniform magnetic field or in a region where there is a change in magnetic flux is called_____________?
A. Induced current
B. Eddy current
C. Back emf
D. None of the above - Which of the following is the non-linearity caused by servomotor ?
A. Static friction
B. Backlash
C. Saturation
D. None of the above - In a non-uniform electric field a polar molecule will experience____________?
A. Net torque
B. Net force
C. both series and parallel combinations
D. zero - If an electrons is allowed to move along the field in a non uniform electric field then it will follow__________________?
A. Spiral path
B. Straight line
C. Curved path
D. Circular path - cmf generated by A.C dynamo depends upon_____________?
A. number of turns in the coil
B. magnetic field strength
C. frequency of rotation
D. all of above - The emf induced in a coil by a changing magnetic flux may have unit as______________?
A. ms-1A
B. ms-2A-1
C. kgms2A-1
D. kgm2s-1A-1 - For electroplating we use_________________?
A. A D.C source
B. an A.C source
C. any source
D. all of the above
