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(Solved): Analyze the DC circuit below. Assume the transistor is in active mode and find expressions for the ...
Analyze the DC circuit below. Assume the transistor is in active mode and find expressions for the collector current and the collector-emitter voltage. Solution Figure 1: A BJT DC Circuit.
Expert Answer
Active Mode condition of BJT: A Bipolar Junction Transistor is in active mode when the emitter-base junction is forward-biased and the collector-base junction is reverse-biased. In active mode, the BJT is used as an amplifier. The forward bias on the emitter-base junction causes a large current to flow from the emitter to the base. This current is then amplified by the transistor and a much larger current flows from the collector to the emitter. The amount of current amplification is determined by the transistor's gain, which is denoted by .