Related Questions
What is the correct answer?
4
Cobalt is an example of a ______ material.
What is the correct answer?
4
A test charge means a charge of
What is the correct answer?
4
Refers to the non- metallic materials that have the ferromagnetic properties of iron.
What is the correct answer?
4
Temporary magnets are commonly employed in
C. moving coils loudspeakers
What is the correct answer?
4
The magnetic materials should have a large hysteresis loss for one of the following applications.
What is the correct answer?
4
What is another name for relative permittivity?
What is the correct answer?
4
Materials that have very high permeabilities (hundreds and even thousands times of that of free space)
What is the correct answer?
4
Magnetic fields do not interact with
A. Moving permanent magnets
B. Stationary permanent magnets
C. Moving electric charges
D. Stationary electric charges
What is the correct answer?
4
The phenomenon that when an electric current passes through an anisotropic crystala there is an absorption or liberation of heat due to the non-uniformity in current distribution.
What is the correct answer?
4
The electric flux density is a ________ quantity.
What is the correct answer?
4
The force acting on a unit n- pole placed at that point is called
A. Magnetic field intensity
B. Electric field intensity
C. Electromagnetic field intensity
D. Intensity magnetization
What is the correct answer?
4
Hysteresis is a phenomenon of _________ in a magnetic circuit.
A. setting up constant flux
What is the correct answer?
4
The unit of flux is _____ in cgs system.
What is the correct answer?
4
A law relating between the magnetic and electric susceptibilities and the absolute temperatures which is followed b ferromagnetsa antiferromagnetsa non-polar ferroelectricsa antiferroelectrics and some paramagnets.
What is the correct answer?
4
What is the unit of magnetomotive force?
What is the correct answer?
4
The permeability of a material having a flux density of 5 Wb/m^2 is 10^-5 H/m. What is the value of magnetizing force?
What is the correct answer?
4
What is the typical saturation flux density for most magnetic materials?
What is the correct answer?
4
The relation between absolute permittivity of air ( 0)a absolute p and velocity of light (c) is given by
What is the correct answer?
4
The force between two magnetic poles varies with the distance between them. The variation is ______ to the square of that distance.
D. Inversely proportional
What is the correct answer?
4
The emission of electrons from hot bodies is called
What is the correct answer?
4
A magnetic flux of 2.5 x10^4 Wb through an area of 5 x10^4 square meters results in
B. 0.5 Tesia of flux density
D. 5000 Tesia of flux density
What is the correct answer?
4
Which of the following is used by temporary magnets as the magnetic material?
What is the correct answer?
4
Which of the following materials has the highest dielectric strength?
What is the correct answer?
4
What determines the atomic number of an element?
B. The number of electrons
C. The number of neutrons
D. The number of neutrons and protons
What is the correct answer?
4
The contribution to the ionization in an ionization chamber by electrons liberated from t he walls.
What is the correct answer?
4
The conduction of electricity across the surface of a dielectric is called
What is the correct answer?
4
Which of the following materials has permeability slightly less than that of free space?
What is the correct answer?
4
If the value of 0 a conductor is 1/234 per oCa then the value of 18is
What is the correct answer?
4
Hydrogen is an example of a _____ material.
What is the correct answer?
4
The process by which an emf and hence current is generated or induced in a conductor when there is a change in the magnetic flux linking the conductor is called
A. Electromagnetic induction
D. Electromagnetic interference