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All India SSC JE 2017 Electrical Engineering - Quiz 39
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Question 1
Orbital magnetic moment of an electron, in an atom, is of the order of
Question 2
When the temperature of a ferromagnetic material exceeds the Curie temperature, it behaves similar to a
Question 3
Photoconductivity is a characteristic of semiconductors. When light falls on certain semiconductors, it
Question 4
Consider the following statements regarding electrical conductivity σ :
1) It increases with temperature in semiconductors.
2) Its increase with temperature is exponential.
3) It increases in metals and their alloys, linearly with temperature.
Which of the above statements are correct?
1) It increases with temperature in semiconductors.
2) Its increase with temperature is exponential.
3) It increases in metals and their alloys, linearly with temperature.
Which of the above statements are correct?
Question 5
The resistivity of intrinsic germanium at 30 °C is 
What is the intrinsic carrier density 
at 30 °C, taking the electron mobility μn as 
and hole mobility μp as 
What is the intrinsic carrier density at 30 °C, taking the electron mobility μn as and hole mobility μp as - 812 attempts
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Dec 19ESE & GATE EE
