Forced Common-Emitter Current Gain Calculator

✖Collector current is an amplified output current of a bipolar junction transistor.ⓘ Collector Current [I_c]			+10% -10%
✖Base Current is a crucial current of bipolar junction transistor. Without the base current, the transistor cannot turn on.ⓘ Base Current [I_B]			+10% -10%

✖Forced common-emitter current gain is the ratio of collector current and base current at saturation mode.ⓘ Forced Common-Emitter Current Gain [β_forced]

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Formula

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Forced Common-Emitter Current Gain

Formula

`"β"_{"forced"} = "I"_{"c"}/"I"_{"B"}`

Example

`"64.93506"="5mA"/"0.077mA"`

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Forced Common-Emitter Current Gain Solution

STEP 0: Pre-Calculation Summary

Formula Used

Forced Common-Emitter Current Gain = Collector Current/Base Current
β_forced = I_c/I_B
This formula uses 3 Variables

Variables Used

Forced Common-Emitter Current Gain - Forced common-emitter current gain is the ratio of collector current and base current at saturation mode.
Collector Current - (Measured in Ampere) - Collector current is an amplified output current of a bipolar junction transistor.
Base Current - (Measured in Ampere) - Base Current is a crucial current of bipolar junction transistor. Without the base current, the transistor cannot turn on.

STEP 1: Convert Input(s) to Base Unit

Collector Current: 5 Milliampere --> 0.005 Ampere (Check conversion here)
Base Current: 0.077 Milliampere --> 7.7E-05 Ampere (Check conversion here)

STEP 2: Evaluate Formula

Substituting Input Values in Formula

β_forced = I_c/I_B --> 0.005/7.7E-05

Evaluating ... ...

β_forced = 64.9350649350649

STEP 3: Convert Result to Output's Unit

64.9350649350649 --> No Conversion Required

FINAL ANSWER

64.9350649350649 ≈ 64.93506 <-- Forced Common-Emitter 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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< 16 Amplification Factor/Gain Calculators

Amplification Factor of BJT

Go BJT Amplification Factor = (Collector Current/Threshold Voltage)*((Positive DC Voltage+Collector-Emitter Voltage)/Collector Current)

Overall Voltage Gain of Amplifier when Load Resistance is Connected to Output

Go Voltage Gain = Common-Base Current Gain*(1/Collector Resistance+1/Load Resistance)^-1/(Signal Resistance+Emitter Resistance)

Overall Voltage Gain of Buffer Amplifier given Load Resistance

Go Voltage Gain = Load Resistance/(Load Resistance+Emitter Resistance+Signal Resistance/(Common Emitter Current Gain+1))

Overall Voltage Gain given Load Resistance of BJT

Go Voltage Gain = -Transconductance*((Collector Resistance*Load Resistance)/(Collector Resistance+Load Resistance))

Common Mode Gain of BJT

Go Common Mode Gain = -(Collector Resistance/(2*Output Resistance))*(Change in Collector Resistance/Collector Resistance)

Total Power Dissipated in BJT

Go Power = Collector-Emitter Voltage*Collector Current+Base-Emitter Voltage*Base Current

Voltage Gain given all Voltages

Go Voltage Gain = -(Supply Voltage-Collector-Emitter Voltage)/Thermal Voltage

Voltage Gain given Collector Current

Go Voltage Gain = -(Collector Current/Thermal Voltage)*Collector Resistance

Total Power Supplied in BJT

Go Power = Supply Voltage*(Collector Current+Input Current)

Common-Base Current Gain

Go Common-Base Current Gain = Common Emitter Current Gain/(Common Emitter Current Gain+1)

Common-Emitter Current Gain using Common-Base Current Gain

Go Common Emitter Current Gain = Common-Base Current Gain/(1-Common-Base Current Gain)

Open Circuit Voltage Gain given Open Circuit Transresistance

Go Open Circuit Voltage Gain = Open Circuit Transresistance/Input Resistance

Forced Common-Emitter Current Gain

Go Forced Common-Emitter Current Gain = Collector Current/Base Current

Voltage Gain given Transconductance and Collector Resistance

Go Voltage Gain = -Transconductance*Collector Resistance

Intrinsic Gain of BJT

Go Intrinsic Gain = Early Voltage/Thermal Voltage

Short-Circuit Current Gain

Go Current Gain = Output Current/Input Current

Forced Common-Emitter Current Gain Formula

Forced Common-Emitter Current Gain = Collector Current/Base Current
β_forced = I_c/I_B

On what factors current gain of common-emitter depends?

The current gain in the common-emitter circuit is obtained from the base and the collector circuit currents. Because a very small change in base current produces a large change in collector current, the current gain (β) is always greater than unity for the common-emitter circuit, a typical value is about 50.

How to Calculate Forced Common-Emitter Current Gain?

Forced Common-Emitter Current Gain calculator uses Forced Common-Emitter Current Gain = Collector Current/Base Current to calculate the Forced Common-Emitter Current Gain, The Forced common-emitter current gain formula is the ratio of the collector current to the base current at the saturation mode. Forced Common-Emitter Current Gain is denoted by β_forced symbol.

How to calculate Forced Common-Emitter Current Gain using this online calculator? To use this online calculator for Forced Common-Emitter Current Gain, enter Collector Current (I_c) & Base Current (I_B) and hit the calculate button. Here is how the Forced Common-Emitter Current Gain calculation can be explained with given input values -> 64.93506 = 0.005/7.7E-05.

FAQ

What is Forced Common-Emitter Current Gain?

The Forced common-emitter current gain formula is the ratio of the collector current to the base current at the saturation mode and is represented as β_forced = I_c/I_B or Forced Common-Emitter Current Gain = Collector Current/Base Current. Collector current is an amplified output current of a bipolar junction transistor & Base Current is a crucial current of bipolar junction transistor. Without the base current, the transistor cannot turn on.

How to calculate Forced Common-Emitter Current Gain?

The Forced common-emitter current gain formula is the ratio of the collector current to the base current at the saturation mode is calculated using Forced Common-Emitter Current Gain = Collector Current/Base Current. To calculate Forced Common-Emitter Current Gain, you need Collector Current (I_c) & Base Current (I_B). With our tool, you need to enter the respective value for Collector Current & Base Current and hit the calculate button. You can also select the units (if any) for Input(s) and the Output as well.

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