Answer / mahendra

biasing is the process of applying external voltage to the
circuit to maintain proper outputs.

means in case of transistor to maintain proper output
we have to apply the external dc supply to the circuit and
base emitor junction in forward bias and collector base
junction in reversse bias that transistor under saturation
region.........

Answer / sarangapani

its the external supply voltage siven to diode to activate
the diode. it is called as biasing

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