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March 2019

If the secondary coil has Ns turns and the primary Np turns the relation between secondary and primary voltages is given by_____________?

Electrical Engineering Mcqs, Electromagnetic Induction /
If the secondary coil has Ns turns and the primary Np turns the relation between secondary and primary voltages is given by_____________?

A. Vs/Vp = Np/Ns
B. Vs/Vp = Ns/Np
C. Vp/Vs = Ns/Np
D. Vp/Vs = Np/Ns

If the secondary coil has Ns turns and the primary Np turns the relation between secondary and primary voltages is given by_____________? Read More »

Electrical Engineering Mcqs, Electromagnetic Induction

A metal rod of 25 cm length is moving at a speed of 0.5/sec in direction perpendicular to 0.25T magnetic field. Emf produced in the rod is_____________?

Electrical Engineering Mcqs, Electromagnetic Induction /
A metal rod of 25 cm length is moving at a speed of 0.5/sec in direction perpendicular to 0.25T magnetic field. Emf produced in the rod is_____________?

A. 0 volt
B. 3.125 volt
C. 31.25 volt
D. 0.03125 volt

A metal rod of 25 cm length is moving at a speed of 0.5/sec in direction perpendicular to 0.25T magnetic field. Emf produced in the rod is_____________? Read More »

Electrical Engineering Mcqs, Electromagnetic Induction

The self-inductance of a solenoid is increased when a soft iron core is inserted into it. This is because the soft iron core_______________?

Electrical Engineering Mcqs, Electromagnetic Induction /
The self-inductance of a solenoid is increased when a soft iron core is inserted into it. This is because the soft iron core_______________?

A. Decreases the resistance of the solenoid
B. Reduces the effect of eddy current
C. Improves the flux linkage between the turns of the coil
D. Increases the mutual inductance between the solenoid and the core

The self-inductance of a solenoid is increased when a soft iron core is inserted into it. This is because the soft iron core_______________? Read More »

Electrical Engineering Mcqs, Electromagnetic Induction

An aeroplane of wingspan 10m flies from the equator towards the North Pole. The wings are perpendicular to the vertical component of the earths magnetic field (B = 4×10-5T). At maximum speed an emf of 96mV is induced across the wing tips. The maximum speed of the aeroplane is____________?

Electrical Engineering Mcqs, Electromagnetic Induction /
An aeroplane of wingspan 10m flies from the equator towards the North Pole. The wings are perpendicular to the vertical component of the earths magnetic field (B = 4×10-5T). At maximum speed an emf of 96mV is induced across the wing tips. The maximum speed of the aeroplane is____________?

A. 150msec-1
B. 384msec-1
C. 38.4msec-1
D. 200msec-1

An aeroplane of wingspan 10m flies from the equator towards the North Pole. The wings are perpendicular to the vertical component of the earths magnetic field (B = 4×10-5T). At maximum speed an emf of 96mV is induced across the wing tips. The maximum speed of the aeroplane is____________? Read More »

Electrical Engineering Mcqs, Electromagnetic Induction

Lagging of changes in the magnetization of a substance behind changes in the magnetic field as the magnetic field is varied is known as magnetic_____________?

Electrical Engineering Mcqs, Electromagnetic Induction /
Lagging of changes in the magnetization of a substance behind changes in the magnetic field as the magnetic field is varied is known as magnetic_____________?

A. Retaintivity
B. Permeability
C. Flux
D. Hysteresis

Lagging of changes in the magnetization of a substance behind changes in the magnetic field as the magnetic field is varied is known as magnetic_____________? Read More »

Electrical Engineering Mcqs, Electromagnetic Induction