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## Credits

Birsa Institute of Technology (BIT), Sindri
Payal Priya has created this Calculator and 500+ more calculators!
Vishwakarma Government Engineering College (VGEC), Ahmedabad
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## Output resistance of the common-emitter amplifier Solution

STEP 0: Pre-Calculation Summary
Formula Used
resistance_output = 1*Output resistance of transistor
Ro = 1*ro
This formula uses 1 Variables
Variables Used
Output resistance of transistor - Output resistance of transistor is the parallel combination of the Emitter (Source) resistor RL and the small-signal emitter (source) resistance of the transistor rE. (Measured in Ohm)
STEP 1: Convert Input(s) to Base Unit
Output resistance of transistor: 20 Ohm --> 20 Ohm No Conversion Required
STEP 2: Evaluate Formula
Substituting Input Values in Formula
Ro = 1*ro --> 1*20
Evaluating ... ...
Ro = 20
STEP 3: Convert Result to Output's Unit
20 Ohm --> No Conversion Required
20 Ohm <-- Output resistance
(Calculation completed in 00.004 seconds)

## < 6 Common-emitter amplifier Calculators

Overall voltage gain of the common-emitter amplifier
overall_voltage_gain = -(Input resistance/Input resistance+Signal Resistance)*MOSFET Transconductance*(1/Total resistance in collector+1/Load resistance+1/Output resistance) Go
Overall voltage gain of common-emitter amplifier in terms of emitter resistance
overall_voltage_gain = -(Input resistance/(Input resistance+Signal Resistance))*Common-base current gain.*(Total resistance in collector/Total resistance in the emitter) Go
Input resistance of common emitter amplifier in terms of small-signal input resistance
resistance_input = (1/Base resistance+1/Base resistance+1/(Small-signal input resistance b/w base-emitter+(Common emitter current gain+1)*Total resistance in the emitter)) Go
Input resistance of common-emitter amplifier in terms of emitter resistance
resistance_input = (1/Base resistance+1/Base resistance+1/((Total resistance in the emitter+Emitter Resistance)*(Common emitter current gain+1))) Go
Input resistance of the common emitter amplifier
resistance_input = (1/Base resistance+1/Base resistance+1/Small-signal input resistance b/w base-emitter) Go
Output resistance of the common-emitter amplifier
resistance_output = 1*Output resistance of transistor Go

### Output resistance of the common-emitter amplifier Formula

resistance_output = 1*Output resistance of transistor
Ro = 1*ro

## What is meant by common-emitter amplifier?

The common emitter amplifier is a three basic single-stage bipolar junction transistor and is used as a voltage amplifier. The input of this amplifier is taken from the base terminal, the output is collected from the collector terminal and the emitter terminal is common for both the terminals.

## What is the use of common-emitter amplifier?

Common-emitter amplifiers are also used in radio frequency circuits, for example, to amplify faint signals received by an antenna. In this case, it is common to replace the load resistor with a tuned circuit. This may be done to limit the bandwidth to a narrow band centered around the intended operating frequency.

## How to Calculate Output resistance of the common-emitter amplifier?

Output resistance of the common-emitter amplifier calculator uses resistance_output = 1*Output resistance of transistor to calculate the Output resistance, The output resistance of the common-emitter amplifier formula is equal to the output resistance of the transistor. Output resistance and is denoted by Ro symbol.

How to calculate Output resistance of the common-emitter amplifier using this online calculator? To use this online calculator for Output resistance of the common-emitter amplifier, enter Output resistance of transistor (ro) and hit the calculate button. Here is how the Output resistance of the common-emitter amplifier calculation can be explained with given input values -> 20 = 1*20.

### FAQ

What is Output resistance of the common-emitter amplifier?
The output resistance of the common-emitter amplifier formula is equal to the output resistance of the transistor and is represented as Ro = 1*ro or resistance_output = 1*Output resistance of transistor. Output resistance of transistor is the parallel combination of the Emitter (Source) resistor RL and the small-signal emitter (source) resistance of the transistor rE.
How to calculate Output resistance of the common-emitter amplifier?
The output resistance of the common-emitter amplifier formula is equal to the output resistance of the transistor is calculated using resistance_output = 1*Output resistance of transistor. To calculate Output resistance of the common-emitter amplifier, you need Output resistance of transistor (ro). With our tool, you need to enter the respective value for Output resistance of transistor 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 Output resistance?
In this formula, Output resistance uses Output resistance of transistor. We can use 6 other way(s) to calculate the same, which is/are as follows -
• resistance_input = (1/Base resistance+1/Base resistance+1/Small-signal input resistance b/w base-emitter)
• overall_voltage_gain = -(Input resistance/Input resistance+Signal Resistance)*MOSFET Transconductance*(1/Total resistance in collector+1/Load resistance+1/Output resistance)
• resistance_input = (1/Base resistance+1/Base resistance+1/((Total resistance in the emitter+Emitter Resistance)*(Common emitter current gain+1)))
• resistance_input = (1/Base resistance+1/Base resistance+1/(Small-signal input resistance b/w base-emitter+(Common emitter current gain+1)*Total resistance in the emitter))
• overall_voltage_gain = -(Input resistance/(Input resistance+Signal Resistance))*Common-base current gain.*(Total resistance in collector/Total resistance in the emitter)
• resistance_output = 1*Output resistance of transistor
Where is the Output resistance of the common-emitter amplifier calculator used?
Among many, Output resistance of the common-emitter amplifier calculator is widely used in real life applications like {FormulaUses}. Here are few more real life examples -
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