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BPSC AE EE Quiz 3
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Question 1
Which of the following is/are property of Ferrites?
(1) Low resistivity
(2) High curie temperature
(3) Low permeability
(4) High dielectric constant
Question 2
A conducting material should be
Question 3
Heat conduction in a semiconductor takes place
Question 4
The spontaneous magnetization is the most important characteristic of
Question 5
Statement (I): Hard magnetic materials are used for making electromagnets.
Statement (II): Hard magnetic materials have high coercive field.
Question 6
Nichrome is an alloy of
Question 7
The Temperature at which iron ceases to be ferromagnetic and becomes para-magnetic is
Question 8
Consider the following statements:
In an n-type semiconductor
1) Fermi level lies below the donor level at room temperature(T).
2) Fermi level lies above the donor level as T
0.
3) Fermi level lies in valence band.
4) Fermi level remains invariant with temperature.
Which of these statements is/are correct?
In an n-type semiconductor
1) Fermi level lies below the donor level at room temperature(T).
2) Fermi level lies above the donor level as T
0. 3) Fermi level lies in valence band.
4) Fermi level remains invariant with temperature.
Which of these statements is/are correct?
Question 9
Thermal conductivity ______ and Entropy _____ in superconducting state.
Question 10
Schottky defect is observed in crystal when: -
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AE & JE ExamsFeb 14AE & JE Exams
