Time Left - 10:00 mins
Vizag Steel Re-Exam: Quiz 7
Attempt now to get your rank among 737 students!
Question 1
Consider the following statements:
The conductivity of a metal has negative temperature coefficient since:
1) The electron concentration increases with temperature.
2) The electron mobility decreases with temperature.
3) The electron-lattice scattering rate increases with temperature.
Which of the above statements is/are correct?
The conductivity of a metal has negative temperature coefficient since:
1) The electron concentration increases with temperature.
2) The electron mobility decreases with temperature.
3) The electron-lattice scattering rate increases with temperature.
Which of the above statements is/are correct?
Question 2
Non-polar electrolytic capacitors
Question 3
Which of the following materials is not an insulator?
Question 4
The piezoelectric effect is the polarization of a dielectric under the influence of
Question 5
Piezoelectricity is the reverse effect of
Question 6
Ceramic resonators use which one of the following?
Question 7
Which one of the following compounds is widely used for making ferrites?
Question 8
In a material, the Fermi-level is located between the centre of the valency band and the conduction band. Then what is that material?
- 737 attempts
- 2 upvotes
- 21 comments
Jun 5ESE & GATE EE
