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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

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_____________?

Electrical Engineering Mcqs, Electromagnetic Induction /
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

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_____________? Read More »

Electrical Engineering Mcqs, Electromagnetic Induction