Time Constant of CE Amplifier Solution

STEP 0: Pre-Calculation Summary
Formula Used
Time Constant = Capacitance of Coupling Capacitor 1*Resistance of Resistor 1
𝜏 = CC1*R1
This formula uses 3 Variables
Variables Used
Time Constant - (Measured in Second) - Time Constant of the response represents the elapsed time required for the system response to decay to zero if the system had continued to decay at the initial rate.
Capacitance of Coupling Capacitor 1 - (Measured in Farad) - Capacitance of Coupling Capacitor 1 is the ratio of the amount of electric charge stored on a conductor to a difference in electric potential in capacitor in a low response amplifier.
Resistance of Resistor 1 - (Measured in Ohm) - Resistance of Resistor 1 is defined as the opposition experienced by the current by resistor 1 of the two resistors in a low response amplifier.
STEP 1: Convert Input(s) to Base Unit
Capacitance of Coupling Capacitor 1: 400 Microfarad --> 0.0004 Farad (Check conversion here)
Resistance of Resistor 1: 4.9 Kilohm --> 4900 Ohm (Check conversion here)
STEP 2: Evaluate Formula
Substituting Input Values in Formula
𝜏 = CC1*R1 --> 0.0004*4900
Evaluating ... ...
𝜏 = 1.96
STEP 3: Convert Result to Output's Unit
1.96 Second --> No Conversion Required
FINAL ANSWER
1.96 Second <-- Time Constant
(Calculation completed in 00.020 seconds)

Credits

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Birsa Institute of Technology (BIT), Sindri
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3 Response of CE Amplifier Calculators

Resistance due to Capacitor CC1 using Method Short-Circuit Time Constants
Go Total Resistance = (1/Base Resistance+1/Input Resistance)+Signal Resistance
Time Constant Associated with Cc1 using Method Short-Circuit Time Constants
Go Time Constant = Capacitance of Coupling Capacitor 1*Resistance of Primary Winding in Secondary
Time Constant of CE Amplifier
Go Time Constant = Capacitance of Coupling Capacitor 1*Resistance of Resistor 1

Time Constant of CE Amplifier Formula

Time Constant = Capacitance of Coupling Capacitor 1*Resistance of Resistor 1
𝜏 = CC1*R1

What is meant by CE 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.

How to Calculate Time Constant of CE Amplifier?

Time Constant of CE Amplifier calculator uses Time Constant = Capacitance of Coupling Capacitor 1*Resistance of Resistor 1 to calculate the Time Constant, The Time constant of CE amplifier formula enables easy approximate computation of -3 dB high-frequency limit of amplifier frequency response, wH (as well as equivalent low-frequency limit, wL) when it is not possible to determine, by direct inspection, values of zeros and poles of frequency response. Time Constant is denoted by 𝜏 symbol.

How to calculate Time Constant of CE Amplifier using this online calculator? To use this online calculator for Time Constant of CE Amplifier, enter Capacitance of Coupling Capacitor 1 (CC1) & Resistance of Resistor 1 (R1) and hit the calculate button. Here is how the Time Constant of CE Amplifier calculation can be explained with given input values -> 1.96 = 0.0004*4900.

FAQ

What is Time Constant of CE Amplifier?
The Time constant of CE amplifier formula enables easy approximate computation of -3 dB high-frequency limit of amplifier frequency response, wH (as well as equivalent low-frequency limit, wL) when it is not possible to determine, by direct inspection, values of zeros and poles of frequency response and is represented as 𝜏 = CC1*R1 or Time Constant = Capacitance of Coupling Capacitor 1*Resistance of Resistor 1. Capacitance of Coupling Capacitor 1 is the ratio of the amount of electric charge stored on a conductor to a difference in electric potential in capacitor in a low response amplifier & Resistance of Resistor 1 is defined as the opposition experienced by the current by resistor 1 of the two resistors in a low response amplifier.
How to calculate Time Constant of CE Amplifier?
The Time constant of CE amplifier formula enables easy approximate computation of -3 dB high-frequency limit of amplifier frequency response, wH (as well as equivalent low-frequency limit, wL) when it is not possible to determine, by direct inspection, values of zeros and poles of frequency response is calculated using Time Constant = Capacitance of Coupling Capacitor 1*Resistance of Resistor 1. To calculate Time Constant of CE Amplifier, you need Capacitance of Coupling Capacitor 1 (CC1) & Resistance of Resistor 1 (R1). With our tool, you need to enter the respective value for Capacitance of Coupling Capacitor 1 & Resistance of Resistor 1 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 Time Constant?
In this formula, Time Constant uses Capacitance of Coupling Capacitor 1 & Resistance of Resistor 1. We can use 1 other way(s) to calculate the same, which is/are as follows -
  • Time Constant = Capacitance of Coupling Capacitor 1*Resistance of Primary Winding in Secondary
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