In a ferromagnetic material, the internal field seen by a dipole is equal to app

CuriousTab

CuriousTab

Home Aptitude

Discussion

Home ‣ Electronics and Communication Engineering ‣ Materials and Components Comments

Question
In a ferromagnetic material, the internal field seen by a dipole is
Options
A. equal to applied field
B. equal to applied field minus a contribution from neighbouring dipoles
C. equal to applied field plus a contribution from neighbouring dipoles
D. equal to or less than applied field

Correct Answer

equal to applied field plus a contribution from neighbouring dipoles

Materials and Components problems

Search Results

2. In its lowest state, the electron is bound to the field of proton by an energy equal to
Options
A. 100.5 eV
B. 51.2 eV
C. 13.6 eV
D. 0.2 eV

5. A circular sphere mile is the area of cross-section of a wire
Options
A. having a diameter equal to 1 miles
B. having a radius equal to 1 miles
C. having a circumference equal to 1 miles
D. none of the above

7. The law that (where K is thermal conductivity, ? is electrical conductivity and T is absolute temperature) for all metals is equal to a universal constant is known as
Options
A. Lorentz law
B. Wiedemann Franz law
C. Curie Weiss law
D. Kittel law

8. The chemical properties of atoms are determined by all the electrons and their configuration.
Options
A. True
B. False

10. From a homogeneous and isotropic dielectric material of dielectric constant ?_r, a small volume element is taken out creating a cavity. The field can be kept homogeneous if D_i. (i.e., electric flux density inside the cavity) and D₀ (i.e., electric flux density outside the cavity) are such that
Options
A. D₀ = D_i
B.
C.
D. either (a) or (b)

Comments

More in Electronics and Communication Engineering: