The liquid-crystal phase of a matter is called
Options
(a) mesophase (b) gel (c) crystalline liquid (d) None of these
Correct Answer:
mesophase
Explanation:
No explanation available. Be the first to write the […]
Function of a rectifier is
Options
(a) To convert ac into dc (b) To convert dc into ac (c) Both a and b (d) none of these
Correct Answer:
To convert ac into […]
The current gain of a transistor in common base configuration is 0.96. Corresponding to the change in emiiter current 10 mA, the change in base current would be
Options
(a) 0.03 mA (b) […]
The p-type semiconductor is
Options
(a) positively charged (b) negatively charged (c) electrically charged (d) unchanged at 0 K or -273 ⁰ C but charged at temperature higher than 0 K.
Correct Answer: […]
Zenor breakdown in a semiconductor diode occurs when
Options
(a) Forward current exceeds certain value (b) Reverse bias exceeds certain value (c) Forward bias exceeds certain value (d) Potential barrier is reduced to zero
In a P-N junction
Options
(a) P and N both are at the same potential (b) High potential is at N side and low potential is at P side (c) High potential is […]
In a n-p-n transistor about 10¹⁰ electrons enter the emitter in 2 μs, when it is connected to a battery. Then, Iе=…….μA.
Options
(a) 400 (b) 200 (c) 800 (d) 1600
Correct Answer: […]
The process of adding impurities to the pure semiconductor is called
Options
(a) Drouping (b) Drooping (c) Doping (d) none of these
Correct Answer:
Doping
Explanation:
No explanation available. Be the first to […]
In a common emitter transistor amplifier, the voltage gain is
Options
(a) αRᴀс/Rᵢn (b) αRᵢn/Rᴀс (c) βRᴀс/Rᵢn (d) βRᵢn/Rᴀс
Correct Answer:
βRᴀс/Rᵢn
Explanation:
No explanation available. Be the first to write the explanation […]
When an input signal 1 is applied to a NOT gate, then its output is
Options
(a) 1 (b) 0 (c) either 0 or 1 (d) any positive value
Correct Answer:
0
Explanation:
When […]
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