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Emitter Current using Collector Current and Current Gain Formula

GoEmitter Current using Common Emitter Current Gain Formula

GoEmitter Current using Transistor Constant Formula

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Emitter Current is the amplified output current of a bipolar junction transistor. Check FAQs

I e = (\frac{β + 1}{β}) \cdot I c

I_e - Emitter Current?β - Common Emitter Current Gain?I_c - Collector Current?

Emitter Current using Collector Current and Current Gain Example

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Here is how the Emitter Current using Collector Current and Current Gain equation looks like with Values.

Here is how the Emitter Current using Collector Current and Current Gain equation looks like with Units.

Here is how the Emitter Current using Collector Current and Current Gain equation looks like.

5.0769 = (\frac{65 + 1}{65}) \cdot 5

5.0769mA = (\frac{65 + 1}{65}) \cdot 5mA

5.0769 = (\frac{65 + 1}{65}) \cdot 5

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Emitter Current using Collector Current and Current Gain Solution

Follow our step by step solution on how to calculate Emitter Current using Collector Current and Current Gain?

FIRST Step Consider the formula

I e = (\frac{β + 1}{β}) \cdot I c

Next Step Substitute values of Variables

∴

I e = (\frac{65 + 1}{65}) \cdot 5mA

Next Step Convert Units

∴

I e = (\frac{65 + 1}{65}) \cdot 0.005A

Next Step Prepare to Evaluate

∴

I e = (\frac{65 + 1}{65}) \cdot 0.005

Next Step Evaluate

∴

I e = 0.00507692307692308A

Next Step Convert to Output's Unit

∴

I e = 5.07692307692308mA

LAST Step Rounding Answer

∴

I e = 5.0769mA

Emitter Current using Collector Current and Current Gain Formula Elements

Variables

Emitter Current

Emitter Current is the amplified output current of a bipolar junction transistor.

Symbol: I_e

Measurement: Electric CurrentUnit: mA

Note: Value can be positive or negative.

Formulas to find Emitter Current

Common Emitter Current Gain

Common emitter current gain is influenced by 2 factors: width of base region W, and relative dopings of base region and emitter region. Its range varies from 50-200.

Symbol: β

Measurement: NAUnit: Unitless

Note: Value should be between 49 to 201.

Formulas to find Common Emitter Current Gain

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

Other Formulas to find Emitter Current

Go Emitter Current using Common Emitter Current Gain

I e = (\frac{β + 1}{β}) \cdot I sat \cdot e^{\frac{V BE}{V t}}

Go Emitter Current using Transistor Constant

I e = (\frac{I sat}{α}) \cdot e^{\frac{V BE}{V t}}

Go Emitter Current through Minority Carrier Concentration

I e = A E \cdot [Charge-e] \cdot D n \cdot (- \frac{n po}{W base})

Go Emitter Current given Base Current

I e = (I d + 1) \cdot I B

Other formulas in Emitter Current category

Go Emitter Current given Base-Emitter Voltage

I E = I sat \cdot (\exp (\frac{[Charge-e] \cdot V BE}{[BoltZ] \cdot t o} - 1))

How to Evaluate Emitter Current using Collector Current and Current Gain?

Emitter Current using Collector Current and Current Gain evaluator uses Emitter Current = ((Common Emitter Current Gain+1)/Common Emitter Current Gain)*Collector Current to evaluate the Emitter Current, The Emitter current using collector current and current gain I.e., of a transistor, is the amplified output current of a bipolar junction transistor. Emitter Current is denoted by I_e symbol.

How to evaluate Emitter Current using Collector Current and Current Gain using this online evaluator? To use this online evaluator for Emitter Current using Collector Current and Current Gain, enter Common Emitter Current Gain (β) & Collector Current (I_c) and hit the calculate button.

FAQs on Emitter Current using Collector Current and Current Gain

What is the formula to find Emitter Current using Collector Current and Current Gain?

The formula of Emitter Current using Collector Current and Current Gain is expressed as Emitter Current = ((Common Emitter Current Gain+1)/Common Emitter Current Gain)*Collector Current. Here is an example- 5076.923 = ((65+1)/65)*0.005.

How to calculate Emitter Current using Collector Current and Current Gain?

With Common Emitter Current Gain (β) & Collector Current (I_c) we can find Emitter Current using Collector Current and Current Gain using the formula - Emitter Current = ((Common Emitter Current Gain+1)/Common Emitter Current Gain)*Collector Current.

What are the other ways to Calculate Emitter Current?

Here are the different ways to Calculate Emitter Current-

Emitter Current=((Common Emitter Current Gain+1)/Common Emitter Current Gain)*Saturation Current*e^(Base-Emitter Voltage/Thermal Voltage)
Emitter Current=(Saturation Current/Common-Base Current Gain)*e^(Base-Emitter Voltage/Thermal Voltage)
Emitter Current=Cross-section Area of Base-Emitter Junction*[Charge-e]*Electron Diffusivity*(-Thermal Equilibrium Concentration/Width of Base Junction)

Can the Emitter Current using Collector Current and Current Gain be negative?

Yes, the Emitter Current using Collector Current and Current Gain, measured in Electric Current can be negative.

Which unit is used to measure Emitter Current using Collector Current and Current Gain?

Emitter Current using Collector Current and Current Gain is usually measured using the Milliampere[mA] for Electric Current. Ampere[mA], Microampere[mA], Centiampere[mA] are the few other units in which Emitter Current using Collector Current and Current Gain can be measured.

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