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Voltage Dependent Resistance in MOSFET Formula

GoFinite Resistance between Drain and Source Formula

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A finite resistance simply means that the resistance in a circuit is not infinite or zero. In other words, the circuit has some amount of resistance, which can affect the behavior of the circuit. Check FAQs

R fi = \frac{V eff}{i d}

R_fi - Finite Resistance?V_eff - Effective Voltage?i_d - Drain Current?

Voltage Dependent Resistance in MOSFET Example

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Here is how the Voltage Dependent Resistance in MOSFET equation looks like with Values.

Here is how the Voltage Dependent Resistance in MOSFET equation looks like with Units.

Here is how the Voltage Dependent Resistance in MOSFET equation looks like.

21.25 = \frac{1.7}{0.08}

21.25kΩ = \frac{1.7V}{0.08mA}

21.25 = \frac{1.7}{0.08}

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Voltage Dependent Resistance in MOSFET Solution

Follow our step by step solution on how to calculate Voltage Dependent Resistance in MOSFET?

FIRST Step Consider the formula

R fi = \frac{V eff}{i d}

Next Step Substitute values of Variables

∴

R fi = \frac{1.7V}{0.08mA}

Next Step Convert Units

∴

R fi = \frac{1.7V}{8E-5A}

Next Step Prepare to Evaluate

∴

R fi = \frac{1.7}{8E-5}

Next Step Evaluate

∴

R fi = 21250Ω

LAST Step Convert to Output's Unit

∴

R fi = 21.25kΩ

Voltage Dependent Resistance in MOSFET Formula Elements

Variables

Finite Resistance

A finite resistance simply means that the resistance in a circuit is not infinite or zero. In other words, the circuit has some amount of resistance, which can affect the behavior of the circuit.

Symbol: R_fi

Measurement: Electric ResistanceUnit: kΩ

Note: Value should be greater than 0.

Formulas to find Finite Resistance

Effective Voltage

The effective voltage in a MOSFET (Metal-Oxide-Semiconductor Field-Effect Transistor) is the voltage that determines the behavior of the device. It is also known as the gate-source voltage.

Symbol: V_eff

Measurement: Electric PotentialUnit: V

Note: Value should be greater than 0.

Formulas to find Effective Voltage

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 to find Finite Resistance

Go Finite Resistance between Drain and Source

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

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 Electron Mean Free Path

λ = \frac{1}{R out \cdot i d}

Go Drain Output Resistance

R out = \frac{1}{λ \cdot i d}

Go MOSFET as Linear Resistance

R ds = \frac{1}{G}

How to Evaluate Voltage Dependent Resistance in MOSFET?

Voltage Dependent Resistance in MOSFET evaluator uses Finite Resistance = Effective Voltage/Drain Current to evaluate the Finite Resistance, Voltage Dependent Resistance in MOSFET refers to the change in resistance of the device as a function of voltage. Finite Resistance is denoted by R_fi symbol.

How to evaluate Voltage Dependent Resistance in MOSFET using this online evaluator? To use this online evaluator for Voltage Dependent Resistance in MOSFET, enter Effective Voltage (V_eff) & Drain Current (i_d) and hit the calculate button.

FAQs on Voltage Dependent Resistance in MOSFET

What is the formula to find Voltage Dependent Resistance in MOSFET?

The formula of Voltage Dependent Resistance in MOSFET is expressed as Finite Resistance = Effective Voltage/Drain Current. Here is an example- 0.02125 = 1.7/8E-05.

How to calculate Voltage Dependent Resistance in MOSFET?

With Effective Voltage (V_eff) & Drain Current (i_d) we can find Voltage Dependent Resistance in MOSFET using the formula - Finite Resistance = Effective Voltage/Drain Current.

What are the other ways to Calculate Finite Resistance?

Here are the different ways to Calculate Finite Resistance-

Finite Resistance=modulus(Positive DC Voltage)/Drain Current

Can the Voltage Dependent Resistance in MOSFET be negative?

No, the Voltage Dependent Resistance in MOSFET, measured in Electric Resistance cannot be negative.

Which unit is used to measure Voltage Dependent Resistance in MOSFET?

Voltage Dependent Resistance in MOSFET is usually measured using the Kilohm[kΩ] for Electric Resistance. Ohm[kΩ], Megohm[kΩ], Microhm[kΩ] are the few other units in which Voltage Dependent Resistance in MOSFET can be measured.

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Voltage Dependent Resistance in MOSFET Formula

​GoFinite Resistance between Drain and Source Formula

Voltage Dependent Resistance in MOSFET Example

Voltage Dependent Resistance in MOSFET Solution

Voltage Dependent Resistance in MOSFET Formula Elements

Other Formulas to find Finite Resistance

Other formulas in Resistance category

How to Evaluate Voltage Dependent Resistance in MOSFET?

FAQs on Voltage Dependent Resistance in MOSFET

Variable Name

GoFinite Resistance between Drain and Source Formula