Computer Programming MCQs

5739 MCQs  (Page 189 of 574)

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
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
Susceptibility is positive for______________?
A. Non-magnetic substances
B. Diamagnetic substances
C. Ferromagnetic substances
D. None of the above
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
One maxwell is equal to____________?
A. 10 webers
B. 10 webers
C. 10 webers
D. 10 webers
One telsa is equal to___________?
A. 1 wb/mm2
B. 1 wb/m
C. 1 wb/m2
D. 1 mwb/m2
Which of the following is not a unit of flux?
A. Maxwell
B. Telsa
C. Weber
D. All of the above
The relative permeability is less than unity is case of_____________?
A. Ferromagnetic materials
B. Ferrites
C. Non-ferrous materials
D. Diamagnetic materials