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Collector Current of BJT Formula

GoCollector Current using Emitter Current Formula

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

I c = I e - I B

I_c - Collector Current?I_e - Emitter Current?I_B - Base Current?

Collector Current of BJT Example

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With units

Only example

Here is how the Collector Current of BJT equation looks like with Values.

Here is how the Collector Current of BJT equation looks like with Units.

Here is how the Collector Current of BJT equation looks like.

5 = 5.077 - 0.077

5mA = 5.077mA - 0.077mA

5 = 5.077 - 0.077

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Collector Current of BJT Solution

Follow our step by step solution on how to calculate Collector Current of BJT?

FIRST Step Consider the formula

I c = I e - I B

Next Step Substitute values of Variables

∴

I c = 5.077mA - 0.077mA

Next Step Convert Units

∴

I c = 0.0051A - 7.7E-5A

Next Step Prepare to Evaluate

∴

I c = 0.0051 - 7.7E-5

Next Step Evaluate

∴

I c = 0.005A

LAST Step Convert to Output's Unit

∴

I c = 5mA

Collector Current of BJT Formula Elements

Variables

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

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

Base Current

Base Current is a crucial current of bipolar junction transistor. Without the base current, the transistor cannot turn on.

Symbol: I_B

Measurement: Electric CurrentUnit: mA

Note: Value should be greater than 0.

Formulas to find Base Current

Other Formulas to find Collector Current

Go Collector Current using Emitter Current

I c = α \cdot I e

Other formulas in Collector Current category

Go Common-Base Current Gain

α = \frac{β}{β + 1}

Go Intrinsic Gain of BJT

A o = \frac{V A}{V t}

Go Total Power Dissipated in BJT

P = V CE \cdot I c + V BE \cdot I B

Go Common Mode Rejection Ratio

CMRR = 20 \cdot \log 10 (\frac{A d}{A cm})

How to Evaluate Collector Current of BJT?

Collector Current of BJT evaluator uses Collector Current = Emitter Current-Base Current to evaluate the Collector Current, The Collector Current of BJT carried by the electrons that reach the collector region. Its direction will be opposite to that of the flow of electrons, and thus into the collector terminal. Collector Current is denoted by I_c symbol.

How to evaluate Collector Current of BJT using this online evaluator? To use this online evaluator for Collector Current of BJT, enter Emitter Current (I_e) & Base Current (I_B) and hit the calculate button.

FAQs on Collector Current of BJT

What is the formula to find Collector Current of BJT?

The formula of Collector Current of BJT is expressed as Collector Current = Emitter Current-Base Current. Here is an example- 5000 = 0.005077-7.7E-05.

How to calculate Collector Current of BJT?

With Emitter Current (I_e) & Base Current (I_B) we can find Collector Current of BJT using the formula - Collector Current = Emitter Current-Base Current.

What are the other ways to Calculate Collector Current?

Here are the different ways to Calculate Collector Current-

Collector Current=Common-Base Current Gain*Emitter Current

Can the Collector Current of BJT be negative?

Yes, the Collector Current of BJT, measured in Electric Current can be negative.

Which unit is used to measure Collector Current of BJT?

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

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Collector Current of BJT Formula

​GoCollector Current using Emitter Current Formula

Collector Current of BJT Example

Collector Current of BJT Solution

Collector Current of BJT Formula Elements

Other Formulas to find Collector Current

Other formulas in Collector Current category

How to Evaluate Collector Current of BJT?

FAQs on Collector Current of BJT

Variable Name

GoCollector Current using Emitter Current Formula