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Emitter Current of Common-Base Amplifier Formula

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

i e = \frac{V in}{R e}

i_e - Emitter Current?V_in - Input Voltage?R_e - Emitter Resistance?

Emitter Current of Common-Base Amplifier Example

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With units

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Here is how the Emitter Current of Common-Base Amplifier equation looks like with Values.

Here is how the Emitter Current of Common-Base Amplifier equation looks like with Units.

Here is how the Emitter Current of Common-Base Amplifier equation looks like.

37.3134 = \frac{2.5}{0.067}

37.3134mA = \frac{2.5V}{0.067kΩ}

37.3134 = \frac{2.5}{0.067}

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Emitter Current of Common-Base Amplifier Solution

Follow our step by step solution on how to calculate Emitter Current of Common-Base Amplifier?

FIRST Step Consider the formula

i e = \frac{V in}{R e}

Next Step Substitute values of Variables

∴

i e = \frac{2.5V}{0.067kΩ}

Next Step Convert Units

∴

i e = \frac{2.5V}{67Ω}

Next Step Prepare to Evaluate

∴

i e = \frac{2.5}{67}

Next Step Evaluate

∴

i e = 0.0373134328358209A

Next Step Convert to Output's Unit

∴

i e = 37.3134328358209mA

LAST Step Rounding Answer

∴

i e = 37.3134mA

Emitter Current of Common-Base Amplifier 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 should be greater than 0.

Formulas to find Emitter Current

Input Voltage

Input voltage is the voltage supplied to the device.

Symbol: V_in

Measurement: Electric PotentialUnit: V

Note: Value should be greater than 0.

Formulas to find Input Voltage

Emitter Resistance

Emitter Resistance is a dynamic resistance of the emitter-base junction diode of a transistor.

Symbol: R_e

Measurement: Electric ResistanceUnit: kΩ

Note: Value should be greater than 0.

Formulas to find Emitter Resistance

Other formulas in Common Base Amplifier category

Go Fundamental Voltage in Common-Emitter Amplifier

V fc = R in \cdot i b

Go Input Impedance of Common-Base Amplifier

Z in = {(\frac{1}{R e} + \frac{1}{R sm})}^{- 1}

Go Input Resistance of Common Emitter Amplifier

R in = {(\frac{1}{R b} + \frac{1}{R b2} + \frac{1}{R sm})}^{- 1}

Go Input Resistance of Common Emitter Amplifier given Small-Signal Input Resistance

R in = {(\frac{1}{R b} + \frac{1}{R b2} + \frac{1}{R sm + (β + 1) \cdot R e})}^{- 1}

How to Evaluate Emitter Current of Common-Base Amplifier?

Emitter Current of Common-Base Amplifier evaluator uses Emitter Current = Input Voltage/Emitter Resistance to evaluate the Emitter Current, The Emitter current of common-base Amplifier is the current flowing from the emitter terminal to the base terminal of the transistor in the amplifier circuit. Emitter Current is denoted by i_e symbol.

How to evaluate Emitter Current of Common-Base Amplifier using this online evaluator? To use this online evaluator for Emitter Current of Common-Base Amplifier, enter Input Voltage (V_in) & Emitter Resistance (R_e) and hit the calculate button.

FAQs on Emitter Current of Common-Base Amplifier

What is the formula to find Emitter Current of Common-Base Amplifier?

The formula of Emitter Current of Common-Base Amplifier is expressed as Emitter Current = Input Voltage/Emitter Resistance. Here is an example- 37313.43 = 2.5/67.

How to calculate Emitter Current of Common-Base Amplifier?

With Input Voltage (V_in) & Emitter Resistance (R_e) we can find Emitter Current of Common-Base Amplifier using the formula - Emitter Current = Input Voltage/Emitter Resistance.

Can the Emitter Current of Common-Base Amplifier be negative?

No, the Emitter Current of Common-Base Amplifier, measured in Electric Current cannot be negative.

Which unit is used to measure Emitter Current of Common-Base Amplifier?

Emitter Current of Common-Base Amplifier 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 of Common-Base Amplifier can be measured.

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Emitter Current of Common-Base Amplifier Formula

Emitter Current of Common-Base Amplifier Example

Emitter Current of Common-Base Amplifier Solution

Emitter Current of Common-Base Amplifier Formula Elements

Other formulas in Common Base Amplifier category

How to Evaluate Emitter Current of Common-Base Amplifier?

FAQs on Emitter Current of Common-Base Amplifier

Variable Name