Curioustab
Aptitude
General Knowledge
Verbal Reasoning
Computer Science
Interview
Take Free Test
Aptitude
General Knowledge
Verbal Reasoning
Computer Science
Interview
Take Free Test
Home
»
Electronics and Communication Engineering
»
Materials and Components
As the temperature of semiconductor is increased
the average number of free charge carriers decreases
the average number of free charge carriers increases
the average number of free charge carriers remains the same
the average number of free charge carriers may increase or decrease
Correct Answer:
the average number of free charge carriers increases
Explanation:
As temperature increases, conductivity of semi- conductors increases.
← Previous Question
Next Question→
More Questions from
Materials and Components
For an insulating material, dielectric strength and dielectric losses should be
Macroscopic quantities of a given material
Assertion (A): Ferrites are very useful at very high frequencies. Reason (R): Ferrites have high permeability and high resistivity.
If v is velocity of electron, ε0 is absolute permittivity, m is mass of electron, e is charge on electron and r is the radius of orbit of electron in hydrogen atom, the stability of orbit requires the following equation to be satisfied
Assertion (A): For a dielectric, P = ∈0(∈r - 1) E. Reason (R): Dipole moment per unit volume is called polarization of dielectric.
Eddy current loss is
Consider the following statement: In case of a superconductor B = 0 μr is high diamagnetism is high transition temperature varies with isotopic mass. Of the above statements
Assertion (A): In liquids and glassy substances, dielectric losses occur. Reason (R): The orientation polarization in many substances is frequency dependent.
The dipole moment per unit volume P as a function of E for an insulator is
The current flow in a semiconductor is due to
Discussion & Comments
No comments yet. Be the first to comment!
Name:
Comment:
Post Comment
Join Discussion
Discussion & Comments