What is fixed bias in BJT?

Fixed Bias or Base Bias. In this condition a single power source is applied to the collector and base of the transistor using only two resistors. Applying KVL to the circuit, Thus, by merely changing the value of the resistor the base current can be adjusted to the desired value.

Similarly one may ask, what do you mean by biasing of a transistor?

Transistor Biasing is the process of setting a transistors DC operating voltage or current conditions to the correct level so that any AC input signal can be amplified correctly by the transistor.

What is forward biased?

When voltage is applied across a diode in such a way that the diode allows current, the diode is said to be forward-biased. When voltage is applied across a diode in such a way that the diode prohibits current, the diode is said to be reverse-biased.

Why is it necessary to bias a transistor?

The process of obtaining an appropriate DC collector current at a certain DC collector voltage by setting up the operating point is called biasing. After establishing the operating point, when an input signal is applied, the output signal should not move the transistor either to saturation or to cut-off.

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