Which of the following is correct?
A. Intrinsic and extrinsic semiconductors have negative temperature coefficient and conductors have positive temperature coefficient
B. Conductors and extrinsic semiconductors have negative temperature coefficient and intrinsic semiconductors have positive temperature coefficient
C. Insulators and semiconductors have positive temperature coefficient whereas conductors have negative temperature coefficient
D. Conductors and extrinsic semiconductors have positive temperature coefficient and pure semiconductors have negative temperature coefficient
Answer: Option D
This Question Belongs to Electronics And Communications Engineering >> Electronic Devices And Circuits
The forbidden energy gap between the valence band and conduction band will be least in case of
A. Metals
B. Semiconductors
C. Insulators
D. All of the above
For a NPN bipolar transistor, what is the main stream of current in the base region?
A. Drift of holes
B. Diffusion of holes
C. Drift of electrons
D. Diffusion of electrons
A. Both A and R are true and R is correct explanation of A
B. Both A and R are true but R is not a correct explanation of A
C. A is true but R is false
D. A is false but R is true
For a P-N diode, the number of minority carriers crossing the junction depends on
A. Forward bias voltage
B. Potential barrier
C. Rate of thermal generation of electron hole pairs
D. None of the above
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