Curioustab
Aptitude
General Knowledge
Verbal Reasoning
Computer Science
Interview
Aptitude
General Knowledge
Verbal Reasoning
Computer Science
Interview
Home
»
Electronics and Communication Engineering
»
Materials and Components
When an electric field E is applied to solid and liquid insulating materials, the internal field Ei acting at the location of atom is such that
Ei = E
Ei > E
Ei < E
Ei may be equal to or less than E
Correct Answer:
Ei > E
Explanation:
The actual field seen by an atom is larger than applied field.
← Previous Question
Next Question→
More Questions from
Materials and Components
The number of valence electrons in donor impurity are
Assertion (A): In imperfect capacitors, the current does not lead the applied ac voltage by 90°. Reason (R): When subjected to ac fields, the dielectric constant can be expressed as ∈'r - j∈"r.
Assertion (A): Ferroelectric materials have spontaneous polarization. Reason (R): Above curie temperature, ∈ = for ferro-electric materials.
Which capacitor-store higher amount of energy?
If the temperature of an extrinsic semiconductor is increased so that the intrinsic carrier concentration is doubled, then
Assertion (A): Magnetic susceptibility of diamagnetic materials is much less than that of paramagnetic materials. Reason (R): For diamagnetic as well as paramagnetic materials, μr is nearly equal to 1.
Which element exhibits the property of inertia?
In a true valence crystal, the bonding between the atoms is accomplished by the sharing of valence electrons.
The units of μ0 and μr are
Assertion (A): If E is available energy state eV and EF is Fermi level, then probability of energy state E being occupied = 0.5. Reason (R): .
Discussion & Comments
No comments yet. Be the first to comment!
Name:
Comment:
Post Comment
Join Discussion
Discussion & Comments