Electrical Engineering Mcqs

One maxwell is equal to____________?

(A) 10 webers
(B) 10 webers
(C) 10 webers
(D) 10 webers

Submitted By :Ali Uppal

Out of the following statements, concerning an electric field, which statement is not true ?

(A) The electric intensity is a vector quantity
(B) The electric field intensity at a point is numerically equal to the force exerted upon a charge placed at that point
(C) An electric field is defined as a point in space at which an electric charge would experience a force
(D) Unit field intensity in the exertion of a force of one newton on a charge of one coulomb

Submitted By :Ali Uppal

Susceptibility is positive for______________?

(A) non-magnetic substances
(B) diamagnetic substances
(C) ferromagnetic substances
(D) none of the above

Submitted By :Ali Uppal

When a magnet is in motion relative to a coil the induced e.m.f. does not depend upon____________?

(A) resistance of the coil
(B) motion of the magnet
(C) number of turns of the coil
(D) pole strength of the magnet

Submitted By :Ali Uppal

When two ends of a circular uniform wire are joined to the terminals of a battery, the field at the center of the circle?

(A) will be zero
(B) will be infinite
(C) will depend on the amount of e.m.f. applied
(D) will depend on the radius of the circle

Submitted By :Ali Uppal

A 300 mm long conductor is carrying a current of 10 A and is situated at right angles to a magnetic field having a flux density of 0.8 T ; the force on the conductor will be____________?

(A) 240 N
(B) 24 N
(C) 2.4 N
(D) 0.24 N

Submitted By :Ali Uppal

The electromagnet has 50 turns and a current of 1A flows through the coil. If the length of the magnet circuit is 200 mm, what is the magnetic field strength ?

(A) 2500 AT/m
(B) 250 AT/m
(C) 25 AT/m
(D) 2.5 AT/m

Submitted By :Ali Uppal

Two long parallel conductors carry 100 A. If the conductors are separated by 20 mm, the force per meter of length of each conductor will be_____________?

(A) 100 N
(B) 10 N
(C) 1 N
(D) 0.1 N

Submitted By :Ali Uppal

A 200 turn coil having an axial length of 30 mm and a radius of 10 mm is pivoted in a magnetic field having a flux density of 0.8 T. If the coil carries a current of 0.5 A, the torque acting on the coil will be_____________?

(A) 8 N-m
(B) 0.48 N-m
(C) 0.048 N-m
(D) 0.0048 N-m

Submitted By :Ali Uppal

A square cross-sectional magnet has a pole strength of 1 x 10 Wb and cross sectional area of 20 mm x 20 mm. What is the strength at a distance of 100 mm from the unit pole in air ?

(A) 63.38 N/Wb
(B) 633.8 N/Wb
(C) 6338 N/Wb
(D) 63380 N/Wb

Submitted By :Ali Uppal

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