The output of an AND gate is connected to both the inputs of a NOR gate,
The output of an AND gate is connected to both the inputs of a NOR gate, then this circuit will acts as a
Options
(a) NOR gate (b) AND gate (c) NOT gate […]
Physics
For a cubic crystal structure which one of the following relations
For a cubic crystal structure which one of the following relations indicating the cell characteristics is correct?
Options
(a) a ≠ b ≠ c and α = β = γ = 90⁰ (b) […]
The depletion layer in the p-n junction region is caused by
The depletion layer in the p-n junction region is caused by
Options
(a) drift of holes (b) drift of electrons (c) diffusion of carriers (d) migration of impurity ions
Correct Answer:
diffusion of carriers
What is the value of Ā+A in the Boolean algebra?
What is the value of Ā+A in the Boolean algebra?
Options
(a) A (b) 0 (c) 1 (d) Ā
Correct Answer:
1
Explanation:
Ā + A should always be equal to 1. As addition […]
When a p-n junction is reverse biased, then the current through the junction
When a p-n junction is reverse biased, then the current through the junction is mainly due to
Options
(a) Only diffusion of charges (b) Only drift of charges (c) Both drift and diffusion of […]
If the feedback voltage is increased in a negative feedback amplifier, then
If the feedback voltage is increased in a negative feedback amplifier, then
Options
(a) both gain and distortion decrease (b) the distortion increase (c) the gain decrease and distortion increase (d) the gain […]
In p- type semiconductor, the acceptor level lies
In p- type semiconductor, the acceptor level lies
Options
(a) near the conduction band (b) halfway between conduction and valence band (c) within conduction band (d) near the valence band
Correct Answer:
near […]
Which one of the following statements is not correct in case of a semiconductor?
Which one of the following statements is not correct in case of a semiconductor?
Options
(a) Temperature coefficient of resistance is negative (b) Doping increases conductivity (c) At absolute zero temperature, it behaves […]
In a ionised gas,the mobile charge carriers are
In a ionised gas,the mobile charge carriers are
Options
(a) electrons (b) both positive ad negative ions (c) electrons and positively charged ions (d) positive ions only
Correct Answer:
electrons and positively charged […]
In a vaccum triode the function of grid voltage is
In a vaccum triode the function of grid voltage is
Options
(a) To maintain electron flow (b) To increase the voltage (c) For long lasting of valve (d) To check the flow of […]