Input Resistance of Common-Gate Circuit Calculator

✖Test voltage involves placing an extra-high voltage across the insulation barrier of the device for one minute.ⓘ Test Voltage [V_x]			+10% -10%
✖Test current is a flow of electrical charge carriers, usually electrons or electron-deficient atoms.ⓘ Test Current [i_x]			+10% -10%

✖Input resistance 2 is the opposition that an electrical component or circuit presents to the flow of electrical current when a voltage is applied to it.ⓘ Input Resistance of Common-Gate Circuit [R_in]

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Formula

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Input Resistance of Common-Gate Circuit

Formula

`"R"_{"in"} = "V"_{"x"}/"i"_{"x"}`

Example

`"0.303371kΩ"="27V"/"89mA"`

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Input Resistance of Common-Gate Circuit Solution

STEP 0: Pre-Calculation Summary

Formula Used

Input Resistance = Test Voltage/Test Current
R_in = V_x/i_x
This formula uses 3 Variables

Variables Used

Input Resistance - (Measured in Ohm) - Input resistance 2 is the opposition that an electrical component or circuit presents to the flow of electrical current when a voltage is applied to it.
Test Voltage - (Measured in Volt) - Test voltage involves placing an extra-high voltage across the insulation barrier of the device for one minute.
Test Current - (Measured in Ampere) - Test current is a flow of electrical charge carriers, usually electrons or electron-deficient atoms.

STEP 1: Convert Input(s) to Base Unit

Test Voltage: 27 Volt --> 27 Volt No Conversion Required
Test Current: 89 Milliampere --> 0.089 Ampere (Check conversion here)

STEP 2: Evaluate Formula

Substituting Input Values in Formula

R_in = V_x/i_x --> 27/0.089

Evaluating ... ...

R_in = 303.370786516854

STEP 3: Convert Result to Output's Unit

303.370786516854 Ohm -->0.303370786516854 Kilohm (Check conversion here)

FINAL ANSWER

0.303370786516854 ≈ 0.303371 Kilohm <-- Input Resistance

(Calculation completed in 00.004 seconds)

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< 18 Transistor Amplifier Characteristics Calculators

Current Flowing through Induced Channel in Transistor given Oxide Voltage

Go Output Current = (Mobility of Electron*Oxide Capacitance*(Width of Channel/Length of Channel)*(Voltage across Oxide-Threshold Voltage))*Saturation Voltage between Drain and Source

Overall Effective Voltage of MOSFET Transconductance

Go Effective Voltage = sqrt(2*Saturation Drain Current/(Process Transconductance Parameter*(Width of Channel/Length of Channel)))

Current Entering Drain Terminal of MOSFET at Saturation

Go Saturation Drain Current = 1/2*Process Transconductance Parameter*(Width of Channel/Length of Channel)*(Effective Voltage)^2

Input Voltage given Signal Voltage

Go Fundamental Component Voltage = (Finite Input Resistance/(Finite Input Resistance+Signal Resistance))*Small Signal Voltage

Transconductance Parameter of MOS Transistor

Go Transconductance Parameter = Drain Current/((Voltage across Oxide-Threshold Voltage)*Voltage between Gate and Source)

Instantaneous Drain Current using Voltage between Drain and Source

Go Drain Current = Transconductance Parameter*(Voltage across Oxide-Threshold Voltage)*Voltage between Gate and Source

Drain Current of Transistor

Go Drain Current = (Fundamental Component Voltage+Total Instantaneous Drain Voltage)/Drain Resistance

Total Instantaneous Drain Voltage

Go Total Instantaneous Drain Voltage = Fundamental Component Voltage-Drain Resistance*Drain Current

Input Voltage in Transistor

Go Fundamental Component Voltage = Drain Resistance*Drain Current-Total Instantaneous Drain Voltage

Transconductance of Transistor Amplifiers

Go MOSFET Primary Transconductance = (2*Drain Current)/(Voltage across Oxide-Threshold Voltage)

Signal Current in Emitter given Input Signal

Go Signal Current in Emitter = Fundamental Component Voltage/Emitter Resistance

Transconductance using Collector Current of Transistor Amplifier

Go MOSFET Primary Transconductance = Collector Current/Threshold Voltage

Input Resistance of Common-Collector Amplifier

Go Input Resistance = Fundamental Component Voltage/Base Current

Output Resistance of Common Gate Circuit given Test-Voltage

Go Finite Output Resistance = Test Voltage/Test Current

Amplifier Input of Transistor Amplifier

Go Amplifier Input = Input Resistance*Input Current

DC Current Gain of Amplifier

Go DC Current Gain = Collector Current/Base Current

Input Resistance of Common-Gate Circuit

Go Input Resistance = Test Voltage/Test Current

Test Current of Transistor Amplifier

Go Test Current = Test Voltage/Input Resistance

Input Resistance of Common-Gate Circuit Formula

Input Resistance = Test Voltage/Test Current
R_in = V_x/i_x

What is the use of common-gate circuit?

This circuit configuration normally used as a voltage amplifier. The source of FET in this configuration is operating as input and drain as output.

How to Calculate Input Resistance of Common-Gate Circuit?

Input Resistance of Common-Gate Circuit calculator uses Input Resistance = Test Voltage/Test Current to calculate the Input Resistance, The input resistance of common-gate circuit formula is defined as measure of opposition to current, both static and dynamic, into load network that is external to electrical source. Input Resistance is denoted by R_in symbol.

How to calculate Input Resistance of Common-Gate Circuit using this online calculator? To use this online calculator for Input Resistance of Common-Gate Circuit, enter Test Voltage (V_x) & Test Current (i_x) and hit the calculate button. Here is how the Input Resistance of Common-Gate Circuit calculation can be explained with given input values -> 8.6E-5 = 27/0.089.

FAQ

What is Input Resistance of Common-Gate Circuit?

The input resistance of common-gate circuit formula is defined as measure of opposition to current, both static and dynamic, into load network that is external to electrical source and is represented as R_in = V_x/i_x or Input Resistance = Test Voltage/Test Current. Test voltage involves placing an extra-high voltage across the insulation barrier of the device for one minute & Test current is a flow of electrical charge carriers, usually electrons or electron-deficient atoms.

How to calculate Input Resistance of Common-Gate Circuit?

The input resistance of common-gate circuit formula is defined as measure of opposition to current, both static and dynamic, into load network that is external to electrical source is calculated using Input Resistance = Test Voltage/Test Current. To calculate Input Resistance of Common-Gate Circuit, you need Test Voltage (V_x) & Test Current (i_x). With our tool, you need to enter the respective value for Test Voltage & Test Current 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 Test Voltage & Test Current. We can use 1 other way(s) to calculate the same, which is/are as follows -

Input Resistance = Fundamental Component Voltage/Base Current

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