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Common Emitter Current Gain Formula

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Current Gain is a measure of how much the collector current of a transistor amplifies the base current. Check FAQs

A i = \frac{I c}{I b}

A_i - Current Gain?I_c - Collector Current?I_b - Base Current?

Common Emitter Current Gain Example

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Here is how the Common Emitter Current Gain equation looks like with Values.

Here is how the Common Emitter Current Gain equation looks like with Units.

Here is how the Common Emitter Current Gain equation looks like.

0.9 = \frac{0.27}{0.3}

0.9 = \frac{0.27A}{0.3A}

0.9 = \frac{0.27}{0.3}

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Common Emitter Current Gain Solution

Follow our step by step solution on how to calculate Common Emitter Current Gain?

FIRST Step Consider the formula

A i = \frac{I c}{I b}

Next Step Substitute values of Variables

∴

A i = \frac{0.27A}{0.3A}

Next Step Prepare to Evaluate

∴

A i = \frac{0.27}{0.3}

LAST Step Evaluate

∴

A i = 0.9

Common Emitter Current Gain Formula Elements

Variables

Current Gain

Current Gain is a measure of how much the collector current of a transistor amplifies the base current.

Symbol: A_i

Measurement: NAUnit: Unitless

Note: Value should be greater than 0.

Formulas to find Current Gain

Collector Current

Collector Current is the current that flows through the collector terminal of the transistor.

Symbol: I_c

Measurement: Electric CurrentUnit: A

Note: Value should be greater than 0.

Formulas to find Collector Current

Base Current

Base Current is the current that flows into the base terminal of the transistor.

Symbol: I_b

Measurement: Electric CurrentUnit: A

Note: Value should be greater than 0.

Formulas to find Base Current

Other formulas in Transistor Based Circuits category

Go Collector Current

I c = A i \cdot I b

Go Transistor Base Current

I b = \frac{I c}{A i}

How to Evaluate Common Emitter Current Gain?

Common Emitter Current Gain evaluator uses Current Gain = Collector Current/Base Current to evaluate the Current Gain, The Common Emitter Current Gain formula is defined as a measure of how much the collector current of a transistor amplifies the base current. Mathematically, it is defined as the ratio of collector current to base current. It quantifies the amplification capability of the transistor and is a key factor in determining the overall performance of transistor-based circuits. Current Gain is denoted by A_i symbol.

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

FAQs on Common Emitter Current Gain

What is the formula to find Common Emitter Current Gain?

The formula of Common Emitter Current Gain is expressed as Current Gain = Collector Current/Base Current. Here is an example- 0.6 = 0.27/0.3.

How to calculate Common Emitter Current Gain?

With Collector Current (I_c) & Base Current (I_b) we can find Common Emitter Current Gain using the formula - Current Gain = Collector Current/Base Current.

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Common Emitter Current Gain Formula

Common Emitter Current Gain Example

Common Emitter Current Gain Solution

Common Emitter Current Gain Formula Elements

Other formulas in Transistor Based Circuits category

How to Evaluate Common Emitter Current Gain?

FAQs on Common Emitter Current Gain

Variable Name