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## Credits

Birsa Institute of Technology (BIT), Sindri
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## Input resistance of the MOSFETs transconductance Solution

STEP 0: Pre-Calculation Summary
Formula Used
resistance_input = 1/MOSFET Transconductance
Ri = 1/gm
This formula uses 1 Variables
Variables Used
MOSFET Transconductance - MOSFET Transconductance is the change in the drain current divided by the small change in the gate/source voltage with a constant drain/source voltage. (Measured in Microsiemens)
STEP 1: Convert Input(s) to Base Unit
MOSFET Transconductance: 0.25 Microsiemens --> 2.5E-07 Siemens (Check conversion here)
STEP 2: Evaluate Formula
Substituting Input Values in Formula
Ri = 1/gm --> 1/2.5E-07
Evaluating ... ...
Ri = 4000000
STEP 3: Convert Result to Output's Unit
4000000 Ohm --> No Conversion Required
4000000 Ohm <-- Input resistance
(Calculation completed in 00.031 seconds)

## < 10+ Common-Gate (CG) and the Common-Base (CB) Amplifiers Calculators

Overall voltage gain of the amplifier when load resistance is connected to the output
overall_voltage_gain = Common-base current gain.*(1/Total resistance in the emitter+1/Load resistance)/(Signal Resistance+Emitter Resistance) Go
Overall voltage gain of the amplifier
Overall voltage gain of the source follower
Output voltage in terms of the transconductance
output_voltage = -(MOSFET Transconductance*Load Resistance*Finite input voltage) Go
Voltage gain of the buffer amplifier
Voltage gain of the common-drain amplifier
voltage_gain = Input resistance/(Load resistance+1/MOSFET Transconductance) Go
Voltage gain of the CS amplifier
voltage_gain_amplifier = MOSFET Transconductance*Load resistance of MOSFET Go
Input resistance of the common-collector amplifier
resistance_input = Input voltage/Signal current in the base Go
Output resistance of the common-drain amplifier
resistance_output = 1/MOSFET Transconductance Go
Input resistance of the MOSFETs transconductance
resistance_input = 1/MOSFET Transconductance Go

### Input resistance of the MOSFETs transconductance Formula

resistance_input = 1/MOSFET Transconductance
Ri = 1/gm

## What is the difference between impedance and resistance?

Resistance is simply defined as the opposition to the flow of electric current in the circuit. Impedance is opposition to the flow of AC current because of any three components that is resistive, inductive or capacitive. It is a combination of both resistance and reactance in a circuit.

## How to Calculate Input resistance of the MOSFETs transconductance?

Input resistance of the MOSFETs transconductance calculator uses resistance_input = 1/MOSFET Transconductance to calculate the Input resistance, The Input resistance of the MOSFETs transconductance formula is defined as the resistance seen by the current source or voltage source which drives the circuit. Input resistance and is denoted by Ri symbol.

How to calculate Input resistance of the MOSFETs transconductance using this online calculator? To use this online calculator for Input resistance of the MOSFETs transconductance, enter MOSFET Transconductance (gm) and hit the calculate button. Here is how the Input resistance of the MOSFETs transconductance calculation can be explained with given input values -> 4.000E+6 = 1/2.5E-07.

### FAQ

What is Input resistance of the MOSFETs transconductance?
The Input resistance of the MOSFETs transconductance formula is defined as the resistance seen by the current source or voltage source which drives the circuit and is represented as Ri = 1/gm or resistance_input = 1/MOSFET Transconductance. MOSFET Transconductance is the change in the drain current divided by the small change in the gate/source voltage with a constant drain/source voltage.
How to calculate Input resistance of the MOSFETs transconductance?
The Input resistance of the MOSFETs transconductance formula is defined as the resistance seen by the current source or voltage source which drives the circuit is calculated using resistance_input = 1/MOSFET Transconductance. To calculate Input resistance of the MOSFETs transconductance, you need MOSFET Transconductance (gm). With our tool, you need to enter the respective value for MOSFET Transconductance and hit the calculate button. You can also select the units (if any) for Input(s) and the Output as well.
How many ways are there to calculate Input resistance?
In this formula, Input resistance uses MOSFET Transconductance. We can use 10 other way(s) to calculate the same, which is/are as follows -
• resistance_input = 1/MOSFET Transconductance
• voltage_gain_amplifier = MOSFET Transconductance*Load resistance of MOSFET
• overall_voltage_gain = Common-base current gain.*(1/Total resistance in the emitter+1/Load resistance)/(Signal Resistance+Emitter Resistance)
• output_voltage = -(MOSFET Transconductance*Load Resistance*Finite input voltage)
• voltage_gain = Input resistance/(Load resistance+1/MOSFET Transconductance)
• resistance_output = 1/MOSFET Transconductance