State the need of biasing of BJT.
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Need of Biasing of BJT: The purpose of dc biasing of BJT is to obtain a certain dc collector current at a certain dc collector voltage i.e. IC and VCE (Q-point). The selected Q point is stabilized against variation in temperature.

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Need of biasing:  The basic need of transistor biasing is to keep the base-emitter (B-E) junction properly forward biased and the collector-emitter (C-E) junction properly reverse biased during the application of A.C. signal.  This type of transistor biasing is necessary for normal and proper operation of transistor to be used for amplification. 
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