Sodium has body centred packing. Distance between two nearest atoms is 3.7 Å. The lattice parameter is
Options
(a) 4.3 Å (b) 3.0 Å (c) 8.6 Å (d) 6.8 Å
Correct Answer:
4.3 […]
In intrinsic semiconductor at room temperature number of electrons and holes are
Options
(a) equal (b) zero (c) unequal (d) infinite
Correct Answer:
equal
Explanation:
No explanation available. Be the first to write […]
The number of beta particles emitted by a radioactive substance is twice the number of alpha particles emitted. The resulting daughter is an
Options
(a) isomer of parent (b) isotone of parent (c) […]
In common base mode of a transistor, the collector current is 5.488 mA for an emitter current of 5.60 mA. The value of the base current amplification factor (β) will be
Options
(a) […]
The voltage gain of an amplifier with 9% negative feedback is 10. The voltage gain without feedback will be
Options
(a) 90 (b) 10 (c) 1.25 (d) 100
Correct Answer:
100
Explanation:
Negative […]
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 […]
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
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?
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 is mainly due to
Options
(a) Only diffusion of charges (b) Only drift of charges (c) Both drift and diffusion of […]
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