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Amplification Factor of BJT Formula

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BJT Amplification Factor is the product of the transconductance and output resistance. Check FAQs

µ f = (\frac{I c}{V th}) \cdot (\frac{V cc + V CE}{I c})

µ_f - BJT Amplification Factor?I_c - Collector Current?V_th - Threshold Voltage?V_cc - Positive DC Voltage?V_CE - Collector-Emitter Voltage?

Amplification Factor of BJT Example

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Here is how the Amplification Factor of BJT equation looks like with Values.

Here is how the Amplification Factor of BJT equation looks like with Units.

Here is how the Amplification Factor of BJT equation looks like.

4.1 = (\frac{5}{5.5}) \cdot (\frac{19.4 + 3.15}{5})

4.1 = (\frac{5mA}{5.5V}) \cdot (\frac{19.4V + 3.15V}{5mA})

4.1 = (\frac{5}{5.5}) \cdot (\frac{19.4 + 3.15}{5})

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Amplification Factor of BJT Solution

Follow our step by step solution on how to calculate Amplification Factor of BJT?

FIRST Step Consider the formula

µ f = (\frac{I c}{V th}) \cdot (\frac{V cc + V CE}{I c})

Next Step Substitute values of Variables

∴

µ f = (\frac{5mA}{5.5V}) \cdot (\frac{19.4V + 3.15V}{5mA})

Next Step Convert Units

∴

µ f = (\frac{0.005A}{5.5V}) \cdot (\frac{19.4V + 3.15V}{0.005A})

Next Step Prepare to Evaluate

∴

µ f = (\frac{0.005}{5.5}) \cdot (\frac{19.4 + 3.15}{0.005})

LAST Step Evaluate

∴

µ f = 4.1

Amplification Factor of BJT Formula Elements

Variables

BJT Amplification Factor

BJT Amplification Factor is the product of the transconductance and output resistance.

Symbol: µ_f

Measurement: NAUnit: Unitless

Note: Value can be positive or negative.

Formulas to find BJT Amplification Factor

Collector Current

Collector current is an amplified output current of a bipolar junction transistor.

Symbol: I_c

Measurement: Electric CurrentUnit: mA

Note: Value can be positive or negative.

Formulas to find Collector Current

Threshold Voltage

Threshold voltage of transistor is the minimum gate to source voltage that is needed to create a conducting path between the source and drain terminals.

Symbol: V_th

Measurement: Electric PotentialUnit: V

Note: Value should be greater than 0.

Formulas to find Threshold Voltage

Positive DC Voltage

Positive DC Voltage provided to the amplifier.

Symbol: V_cc

Measurement: Electric PotentialUnit: V

Note: Value should be greater than 0.

Formulas to find Positive DC Voltage

Collector-Emitter Voltage

Collector-Emitter Voltage is the electric potential between the base and collector region of a transistor.

Symbol: V_CE

Measurement: Electric PotentialUnit: V

Note: Value can be positive or negative.

Formulas to find Collector-Emitter Voltage

Other formulas in Amplification Factor or Gain category

Go Short-Circuit Current Gain

A i = \frac{I o}{I in}

Go Open Circuit Voltage Gain given Open Circuit Transresistance

A = \frac{R m}{R in}

Go Voltage Gain given Collector Current

A v = - (\frac{I c}{V t}) \cdot R c

Go Voltage Gain given all Voltages

A v = - \frac{V DD - V CE}{V t}

How to Evaluate Amplification Factor of BJT?

Amplification Factor of BJT evaluator uses BJT Amplification Factor = (Collector Current/Threshold Voltage)*((Positive DC Voltage+Collector-Emitter Voltage)/Collector Current) to evaluate the BJT Amplification Factor, The Amplification factor of BJT in a BJT transistor is defined as the ratio of output current to its input current. In a common base configuration, the current amplification factor is the ratio of collector current to the emitter current. BJT Amplification Factor is denoted by µ_f symbol.

How to evaluate Amplification Factor of BJT using this online evaluator? To use this online evaluator for Amplification Factor of BJT, enter Collector Current (I_c), Threshold Voltage (V_th), Positive DC Voltage (V_cc) & Collector-Emitter Voltage (V_CE) and hit the calculate button.

FAQs on Amplification Factor of BJT

What is the formula to find Amplification Factor of BJT?

The formula of Amplification Factor of BJT is expressed as BJT Amplification Factor = (Collector Current/Threshold Voltage)*((Positive DC Voltage+Collector-Emitter Voltage)/Collector Current). Here is an example- 4.1 = (0.005/5.5)*((19.4+3.15)/0.005).

How to calculate Amplification Factor of BJT?

With Collector Current (I_c), Threshold Voltage (V_th), Positive DC Voltage (V_cc) & Collector-Emitter Voltage (V_CE) we can find Amplification Factor of BJT using the formula - BJT Amplification Factor = (Collector Current/Threshold Voltage)*((Positive DC Voltage+Collector-Emitter Voltage)/Collector Current).

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Amplification Factor of BJT Formula

Amplification Factor of BJT Example

Amplification Factor of BJT Solution

Amplification Factor of BJT Formula Elements

Other formulas in Amplification Factor or Gain category

How to Evaluate Amplification Factor of BJT?

FAQs on Amplification Factor of BJT

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