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Current Gain of Amplifier Formula

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Current Gain is the ratio of output current to the input current of an amplifier is defined as current gain. Check FAQs

A i = \frac{I o}{i in}

A_i - Current Gain?I_o - Output Current?i_in - Input Current?

Current Gain of Amplifier Example

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With units

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Here is how the Current Gain of Amplifier equation looks like with Values.

Here is how the Current Gain of Amplifier equation looks like with Units.

Here is how the Current Gain of Amplifier equation looks like.

1.1788 = \frac{3.23}{2.74}

1.1788 = \frac{3.23mA}{2.74mA}

1.1788 = \frac{3.23}{2.74}

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Current Gain of Amplifier Solution

Follow our step by step solution on how to calculate Current Gain of Amplifier?

FIRST Step Consider the formula

A i = \frac{I o}{i in}

Next Step Substitute values of Variables

∴

A i = \frac{3.23mA}{2.74mA}

Next Step Convert Units

∴

A i = \frac{0.0032A}{0.0027A}

Next Step Prepare to Evaluate

∴

A i = \frac{0.0032}{0.0027}

Next Step Evaluate

∴

A i = 1.17883211678832

LAST Step Rounding Answer

∴

A i = 1.1788

Current Gain of Amplifier Formula Elements

Variables

Current Gain

Current Gain is the ratio of output current to the input current of an amplifier is defined as current gain.

Symbol: A_i

Measurement: NAUnit: Unitless

Note: Value should be greater than 0.

Formulas to find Current Gain

Output Current

The Output Current of the amplifier is defined as the maximum current that can be supplied to the load.

Symbol: I_o

Measurement: Electric CurrentUnit: mA

Note: Value can be positive or negative.

Formulas to find Output Current

Input Current

Input Current is defined as any closed-loop configuration in which the error signal used for feedback is in the form of a current.

Symbol: i_in

Measurement: Electric CurrentUnit: mA

Note: Value can be positive or negative.

Formulas to find Input Current

Other formulas in Amplifier Characteristics category

Go Power Gain of Amplifier

A p = \frac{P L}{P in}

Go Base Junction Width of Amplifier

w b = \frac{A be \cdot [Charge-e] \cdot D n \cdot n po}{i sat}

Go Differential Voltage in Amplifier

V id = \frac{V o}{(\frac{R 4}{R 3}) \cdot (1 + \frac{R 2}{R 1})}

Go Current Gain of Amplifier in Decibels

A i(dB) = 20 \cdot (\log 10 (A i))

How to Evaluate Current Gain of Amplifier?

Current Gain of Amplifier evaluator uses Current Gain = Output Current/Input Current to evaluate the Current Gain, The Current Gain of Amplifier formula is defined as the ratio of output current to the input current of an amplifier. Current Gain is denoted by A_i symbol.

How to evaluate Current Gain of Amplifier using this online evaluator? To use this online evaluator for Current Gain of Amplifier, enter Output Current (I_o) & Input Current (i_in) and hit the calculate button.

FAQs on Current Gain of Amplifier

What is the formula to find Current Gain of Amplifier?

The formula of Current Gain of Amplifier is expressed as Current Gain = Output Current/Input Current. Here is an example- 1.178832 = 0.00323/0.00274.

How to calculate Current Gain of Amplifier?

With Output Current (I_o) & Input Current (i_in) we can find Current Gain of Amplifier using the formula - Current Gain = Output Current/Input Current.

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