Collector Resistance in BJT Formulas

Collector Resistance (Rc)helps to set the transistor at the "operating point" of the amplifier. The purpose of the emitter resistor Re is to prevent "thermal runaway". And is denoted by R_c. Collector Resistance is usually measured using the Kilohm for Electric Resistance. Note that the value of Collector Resistance is always negative.

BJT formulas that make use of Collector Resistance

fxCommon Mode Rejection Ratio of BJTGo

fxVoltage Gain given Collector CurrentGo

fxVoltage Gain given Transconductance and Collector ResistanceGo

fxCommon Mode Gain of BJTGo

fxOverall Voltage Gain given Load Resistance of BJTGo

fxOverall Voltage Gain of Amplifier when Load Resistance is Connected to OutputGo

FAQ

What is the Collector Resistance?

Collector Resistance (Rc)helps to set the transistor at the "operating point" of the amplifier. The purpose of the emitter resistor Re is to prevent "thermal runaway". Collector Resistance is usually measured using the Kilohm for Electric Resistance. Note that the value of Collector Resistance is always negative.

Can the Collector Resistance be negative?

Yes, the Collector Resistance, measured in Electric Resistance can be negative.

What unit is used to measure Collector Resistance?

Collector Resistance is usually measured using the Kilohm[kΩ] for Electric Resistance. Ohm[kΩ], Megohm[kΩ], Microhm[kΩ] are the few other units in which Collector Resistance can be measured.

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