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Electron Mean Free Path Formula

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Electron Mean Free Path which represents the average distance an electron can travel without scattering with impurities, defeat, or other obstacles within the solid state device. Check FAQs

λ = \frac{1}{R out \cdot i d}

λ - Electron Mean Free Path?R_out - Output Resistance?i_d - Drain Current?

Electron Mean Free Path Example

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With units

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Here is how the Electron Mean Free Path equation looks like with Values.

Here is how the Electron Mean Free Path equation looks like with Units.

Here is how the Electron Mean Free Path equation looks like.

2.7778 = \frac{1}{4.5 \cdot 0.08}

2.7778 = \frac{1}{4.5kΩ \cdot 0.08mA}

2.7778 = \frac{1}{4.5 \cdot 0.08}

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Electron Mean Free Path Solution

Follow our step by step solution on how to calculate Electron Mean Free Path?

FIRST Step Consider the formula

λ = \frac{1}{R out \cdot i d}

Next Step Substitute values of Variables

∴

λ = \frac{1}{4.5kΩ \cdot 0.08mA}

Next Step Convert Units

∴

λ = \frac{1}{4500Ω \cdot 8E-5A}

Next Step Prepare to Evaluate

∴

λ = \frac{1}{4500 \cdot 8E-5}

Next Step Evaluate

∴

λ = 2.77777777777778

LAST Step Rounding Answer

∴

λ = 2.7778

Electron Mean Free Path Formula Elements

Variables

Electron Mean Free Path

Electron Mean Free Path which represents the average distance an electron can travel without scattering with impurities, defeat, or other obstacles within the solid state device.

Symbol: λ

Measurement: NAUnit: Unitless

Note: Value can be positive or negative.

Formulas to find Electron Mean Free Path

Output Resistance

Output resistance refers to the resistance of an electronic circuit to the flow of current when a load is connected to its output.

Symbol: R_out

Measurement: Electric ResistanceUnit: kΩ

Note: Value should be greater than 0.

Formulas to find Output Resistance

Drain Current

Drain current is the current that flows between the drain and the source terminals of a field-effect transistor (FET), which is a type of transistor commonly used in electronic circuits.

Symbol: i_d

Measurement: Electric CurrentUnit: mA

Note: Value should be greater than 0.

Formulas to find Drain Current

Other formulas in Resistance category

Go MOSFET as Linear Resistance given Aspect Ratio

R ds = \frac{L}{μ s \cdot C ox \cdot W c \cdot V eff}

Go Drain Output Resistance

R out = \frac{1}{λ \cdot i d}

Go Finite Resistance between Drain and Source

R fi = mod \underset{̲}{u} s \frac{V a}{i d}

Go MOSFET as Linear Resistance

R ds = \frac{1}{G}

How to Evaluate Electron Mean Free Path?

Electron Mean Free Path evaluator uses Electron Mean Free Path = 1/(Output Resistance*Drain Current) to evaluate the Electron Mean Free Path, Electron Mean Free Path is the average distance traveled by an electron in a material before colliding with other particles or impurities. Electron Mean Free Path is denoted by λ symbol.

How to evaluate Electron Mean Free Path using this online evaluator? To use this online evaluator for Electron Mean Free Path, enter Output Resistance (R_out) & Drain Current (i_d) and hit the calculate button.

FAQs on Electron Mean Free Path

What is the formula to find Electron Mean Free Path?

The formula of Electron Mean Free Path is expressed as Electron Mean Free Path = 1/(Output Resistance*Drain Current). Here is an example- 2.777778 = 1/(4500*8E-05).

How to calculate Electron Mean Free Path?

With Output Resistance (R_out) & Drain Current (i_d) we can find Electron Mean Free Path using the formula - Electron Mean Free Path = 1/(Output Resistance*Drain Current).

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