Common Base Current Gain Calculator

✖Voltage gain is defined as the ratio of the output voltage to the input voltage.ⓘ Voltage Gain [A_v]			+10% -10%
✖Emitter Resistance is a dynamic resistance of the emitter-base junction diode of a transistor.ⓘ Emitter Resistance [R_e]			+10% -10%
✖The Collector Resistancer is the opposition offered to the current passing through the collector.ⓘ Collector Resistance [R_c]			+10% -10%

✖Common Base Current Gain α is related to β common-emitter current gain of a transistor and used for calculations.ⓘ Common Base Current Gain [α]

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Common Base Current Gain Solution

STEP 0: Pre-Calculation Summary

Formula Used

Common Base Current Gain = (Voltage Gain*Emitter Resistance/Collector Resistance)
α = (A_v*R_e/R_c)
This formula uses 4 Variables

Variables Used

Common Base Current Gain - Common Base Current Gain α is related to β common-emitter current gain of a transistor and used for calculations.
Voltage Gain - Voltage gain is defined as the ratio of the output voltage to the input voltage.
Emitter Resistance - (Measured in Ohm) - Emitter Resistance is a dynamic resistance of the emitter-base junction diode of a transistor.
Collector Resistance - (Measured in Ohm) - The Collector Resistancer is the opposition offered to the current passing through the collector.

STEP 1: Convert Input(s) to Base Unit

Voltage Gain: 4.21 --> No Conversion Required
Emitter Resistance: 0.067 Kilohm --> 67 Ohm (Check conversion here)
Collector Resistance: 1.01 Kilohm --> 1010 Ohm (Check conversion here)

STEP 2: Evaluate Formula

Substituting Input Values in Formula

α = (A_v*R_e/R_c) --> (4.21*67/1010)

Evaluating ... ...

α = 0.279277227722772

STEP 3: Convert Result to Output's Unit

0.279277227722772 --> No Conversion Required

FINAL ANSWER

0.279277227722772 ≈ 0.279277 <-- Common Base Current Gain

(Calculation completed in 00.004 seconds)

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Created by Payal Priya

Birsa Institute of Technology (BIT), Sindri

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Vishwakarma Government Engineering College (VGEC), Ahmedabad

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< Common Base Amplifier Calculators

Negative Voltage Gain from Base to Collector

LaTeX Go Negative Voltage Gain = -Common Base Current Gain*(Collector Resistance/Emitter Resistance)

Common Base Current Gain

LaTeX Go Common Base Current Gain = (Voltage Gain*Emitter Resistance/Collector Resistance)

Emitter Current of Common-Base Amplifier

LaTeX Go Emitter Current = Input Voltage/Emitter Resistance

Voltage Gain of Common-Base Amplifier

LaTeX Go Voltage Gain = Collector Voltage/Emitter Voltage

< Common Stage Amplifiers Gain Calculators

Overall Feedback Voltage Gain of Common-Collector Amplifier

LaTeX Go Overall Voltage Gain = ((Collector Base Current Gain+1)*Load Resistance)/((Collector Base Current Gain+1)*Load Resistance+(Collector Base Current Gain+1)*Emitter Resistance+Signal Resistance)

Negative Voltage Gain from Base to Collector

LaTeX Go Negative Voltage Gain = -Common Base Current Gain*(Collector Resistance/Emitter Resistance)

Common Base Current Gain

LaTeX Go Common Base Current Gain = (Voltage Gain*Emitter Resistance/Collector Resistance)

Voltage Gain of Common-Base Amplifier

LaTeX Go Voltage Gain = Collector Voltage/Emitter Voltage

Common Base Current Gain Formula

LaTeX Go

Common Base Current Gain = (Voltage Gain*Emitter Resistance/Collector Resistance)
α = (A_v*R_e/R_c)

What is voltage gain?

The difference between the output signal voltage level in decibels and the input signal voltage level in decibels; this value is equal to 20 times the common logarithm of the ratio of the output voltage to the input voltage.

How to Calculate Common Base Current Gain?

Common Base Current Gain calculator uses Common Base Current Gain = (Voltage Gain*Emitter Resistance/Collector Resistance) to calculate the Common Base Current Gain, The Common Base Current Gain is defined as the change in collector current divided by the change in emitter current when the base-to-collector voltage is constant. Common Base Current Gain is denoted by α symbol.

How to calculate Common Base Current Gain using this online calculator? To use this online calculator for Common Base Current Gain, enter Voltage Gain (A_v), Emitter Resistance (R_e) & Collector Resistance (R_c) and hit the calculate button. Here is how the Common Base Current Gain calculation can be explained with given input values -> 0.279277 = (4.21*67/1010).

FAQ

What is Common Base Current Gain?

The Common Base Current Gain is defined as the change in collector current divided by the change in emitter current when the base-to-collector voltage is constant and is represented as α = (A_v*R_e/R_c) or Common Base Current Gain = (Voltage Gain*Emitter Resistance/Collector Resistance). Voltage gain is defined as the ratio of the output voltage to the input voltage, Emitter Resistance is a dynamic resistance of the emitter-base junction diode of a transistor & The Collector Resistancer is the opposition offered to the current passing through the collector.

How to calculate Common Base Current Gain?

The Common Base Current Gain is defined as the change in collector current divided by the change in emitter current when the base-to-collector voltage is constant is calculated using Common Base Current Gain = (Voltage Gain*Emitter Resistance/Collector Resistance). To calculate Common Base Current Gain, you need Voltage Gain (A_v), Emitter Resistance (R_e) & Collector Resistance (R_c). With our tool, you need to enter the respective value for Voltage Gain, Emitter Resistance & Collector Resistance and hit the calculate button. You can also select the units (if any) for Input(s) and the Output as well.

How many ways are there to calculate Common Base Current Gain?

In this formula, Common Base Current Gain uses Voltage Gain, Emitter Resistance & Collector Resistance. We can use 2 other way(s) to calculate the same, which is/are as follows -

Common Base Current Gain = Overall Voltage Gain/(Collector Resistance/Emitter Resistance*(Input Resistance/(Input Resistance+Signal Resistance)))
Common Base Current Gain = Overall Voltage Gain/(Collector Resistance/Emitter Resistance*(Input Resistance/(Input Resistance+Signal Resistance)))

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