Question
Reason (R): Ferrites have high permeability and high resistivity.
a.
Both A and R are true and R is correct explanation of A
b.
Both A and R are true but R is not correct explanation of A
c.
A is true but R is false
d.
A is false but R is true
Posted under Electronics and Communication Engineering
Interact with the Community - Share Your Thoughts
Uncertain About the Answer? Seek Clarification Here.
Understand the Explanation? Include it Here.
Q. Assertion (A): Ferrites are very useful at very high frequencies. Reason (R): Ferrites have high permeability and high resistivity.
Similar Questions
Explore Relevant Multiple Choice Questions (MCQs)
Q. In a conductor the current flow is due to
View solution
Q. When an electron moves at velocity v in combined electric and magnetic fields E and H, the Lorentz force F is F = - e(E + v x B).
View solution
Q. When Schrodinger equation is applied to the motion of electron in the field of protons, the physically acceptable solutions for the wave function exist for quantum number which are
View solution
Q. For dielectrics in alternating field, polarizability αe is a complex quantity. The imaginary part of ae is zero for
View solution
Q. In the wave mechanical theory, the maximum of the charge distribution in the ground state occurs for a distance from the nucleus equal to
View solution
Q. The induced magnetic dipole moment has a direction opposite to the applied magnetic field.
View solution
Q. An atom of polarizability a is placed in a homogeneous electric field E. The energy stored in polarized atom is
View solution
Q. If B, H and M denote flux density, field intensity and magnetisation, B = μ₀ (H + M).
View solution
Q. A capacitor can be represented by a capacitance and resistance in parallel. For a good capacitor, this parallel resistance should be
View solution
Q. Assertion (A): Ionic solids, in general, have no electrical conductivity.
Reason (R): In ionic solids, electrons are tightly bound to the nucleus.
View solution
Q. Tesla is a unit of
View solution
Q. If the operating temperature increases by 10°C, the rate of deterioration of solid dielectric becomes
View solution
Q. In which of the following semiconductor are holes minority carriers
View solution
Q. At 0 K, silicon and germanium behave like monoatomic crystals.
View solution
Q. Assertion (A): Acceptor extrinsic semiconductor has higher conductivity than intrinsic semiconductor.
Reason (R): Addition of p-type impurity produces an allowable discrete energy level just above valence band.
View solution
Q. When temperature is above ferromagnetic Curie temperature, a ferromagnetic material
View solution
Q. A magnet does not attract
View solution
Q. Bitter powder patterns prove the existence of domains.
View solution
Q. Assertion (A): An amorphous material is obtained when mobility of atoms is inhibited during solidification.
Reason (R): Crystalline state is a natural state for most solids.
View solution
Q. An air cored inductance is a
View solution
Recommended Subjects
Are you eager to expand your knowledge beyond Electronics and Communication Engineering? We've handpicked a range of related categories that you might find intriguing.
Click on the categories below to discover a wealth of MCQs and enrich your understanding of various subjects. Happy exploring!