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In Semiconductor Physics, What is Meant By: (I) Rectifier (Ii) an Amplifier (Iii) an Oscillator - Physics (Theory)

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Definition

In semiconductor physics, what is meant by: 
(i) rectifier
(ii) an amplifier
(iii) an oscillator

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Solution

(i) Rectifier: It is a device which converts alternating current into direct current.

(ii) Amplifier: An amplifier is a device which increases the energy of a weak signal by supplying energy from an external source. An amplifier increases the amplitude of a input signal.

(iii) Oscillator: An oscillator is a device which produces electrical oscillations of adjustable frequency and constant amplitude. An oscillator is basically an amplifier. A part of the output energy is fed back into the L-C circuit to produce sustained oscillations.

Concept: Semiconductor Diode
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