Reciprocal of permeability is____________?
A. reluctivity
B. susceptibility
C. permittivity
D. conductance
Month: December 2018
Which of the following is the unit of magnetic flux density ?
Which of the following is the unit of magnetic flux density ?
A. weber
B. lumens
C. tesla
D. none of the above
The working of a meter is based on the use of a permanent magnet. In order to protect the meter functioning from stray magnetic fields______________?
The working of a meter is based on the use of a permanent magnet. In order to protect the meter functioning from stray magnetic fields______________?
A. meter is surrounded by strong magnetic fields
B. a soft iron shielding is used
C. a plastic shielding is provided
D. a shielding of anon-magnetic material is used
The relative permeability is less than unity is case of_____________?
The relative permeability is less than unity is case of_____________?
A. ferromagnetic materials
B. ferrites
C. non-ferrous materials
D. diamagnetic materials
Which of the following is not a unit of flux?
Which of the following is not a unit of flux?
A. Maxwell
B. Telsa
C. Weber
D. All of the above
One telsa is equal to___________?
One telsa is equal to___________?
A. 1 Wb/mm2
B. 1 Wb/m
C. 1 Wb/m2
D. 1 mWb/m2
The magnetism left in the iron after exciting field has been removed is known as____________?
The magnetism left in the iron after exciting field has been removed is known as____________?
A. permeance
B. residual magnetism
C. susceptance
D. reluctance
Which of the following is expected to have the maximum permeability ?
Which of the following is expected to have the maximum permeability ?
A. Brass
B. Copper
C. Zinc
D. Ebonite
One maxwell is equal to____________?
One maxwell is equal to____________?
A. 10 webers
B. 10 webers
C. 10 webers
D. 10 webers
Out of the following statements, concerning an electric field, which statement is not true ?
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