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
Answer: Option A
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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
Which of the following could be the maximum current rating of junction diode by 126?
Kindly explain, How the answer is 1 A
In case of Metals the valance band and conduction band overlap each other that means no energy gap exist in metals. So Semiconductor is the only material having least band gap. In case of Insulator band gap increases due to less electrons in valance band. So the right answer should be 'B'= Semiconductor