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ITI
Electrician
Electrician Set-2
Magnetism and Capacitors
13

Magnetism and Capacitors MCQ with Answers

13) Which is the correct expression of capacitance C if the electric charge is Q and the voltage is V?

C = Q/V

C = V/Q

C = VQ

C = Root of (VQ)

Answer is:

C = Q/V

Magnetism and Capacitors MCQ with Answers

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Related Magnetism and Capacitors MCQ with Answers

14) How can you increase the pulling strength of an electromagnet?

Increase the field intensity

Reduce the current in the coil

Reduce the number of turns in the coil

Increase the B-H curve of the material

Answer is:

Increase the field intensity

15) Which defines the flux density is always lagging behind the magnetising force?

Hysteresis

Magnetic intensity

Magnetic induction

Residual magnetism

Answer is:

Hysteresis

16) What is the effect on surrounding metal placed in a magnetic field?

Hysteresis

Skin effect

Eddy current

Dielectric stress

Answer is:

Eddy current

17) In which device the air capacitors are used?

TV tuner

Oscillator

Loudspeaker

Radio receiver

Answer is:

Radio receiver

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