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PHYSICS

Physics
For which one of the following, ''Diodes' are generally used for?

Amplification
Modulation
Filtration
Rectification

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Physics
The width of depletion layer of a P-N junction

Decreases with light doping
Is independent of applied voltage
Is increased under reverse bias
Increases with heavy doping

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Physics
The impurity atoms with which silicon should be doped to make p-type semiconductors are

Phosphorus
Boron
Antimony
Germanium

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Physics
Which of the following is used for regulated electric supply ?

Zener diode
Tunnel diode
Gun diode
Junction diode

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Physics
A NOT gate can be implemented by:

Two diodes
A single diode
A single resistor
A single transistor

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