Transistor biasing

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A transistor amplifier must satisfy three basic conditions, namely :
  1) proper zero signal collector current.
  2) proper base-emitter voltage at any instant and
  3) proper collector-emitter voltage at any instant. It is the fulfilment of these conditions which is known as transistor biasing.
         The proper flow of zero signal collector current and the maintenance of proper collector-emitter voltage during the passage of signal is known as transistor biasing.

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