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Overall Voltage Gain of Buffer Amplifier given Load Resistance Formula

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GoVoltage Gain given all Voltages Formula

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Voltage gain is defined as the ratio of the output voltage to the input voltage. Check FAQs

A v = \frac{R L}{R L + R e + \frac{R s}{β + 1}}

A_v - Voltage Gain?R_L - Load Resistance?R_e - Emitter Resistance?R_s - Signal Resistance?β - Common Emitter Current Gain?

Overall Voltage Gain of Buffer Amplifier given Load Resistance Example

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Here is how the Overall Voltage Gain of Buffer Amplifier given Load Resistance equation looks like with Values.

Here is how the Overall Voltage Gain of Buffer Amplifier given Load Resistance equation looks like with Units.

Here is how the Overall Voltage Gain of Buffer Amplifier given Load Resistance equation looks like.

0.9188 = \frac{4}{4 + 0.35 + \frac{0.24}{65 + 1}}

0.9188dB = \frac{4kΩ}{4kΩ + 0.35kΩ + \frac{0.24kΩ}{65 + 1}}

0.9188 = \frac{4}{4 + 0.35 + \frac{0.24}{65 + 1}}

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Overall Voltage Gain of Buffer Amplifier given Load Resistance Solution

Follow our step by step solution on how to calculate Overall Voltage Gain of Buffer Amplifier given Load Resistance?

FIRST Step Consider the formula

A v = \frac{R L}{R L + R e + \frac{R s}{β + 1}}

Next Step Substitute values of Variables

∴

A v = \frac{4kΩ}{4kΩ + 0.35kΩ + \frac{0.24kΩ}{65 + 1}}

Next Step Convert Units

∴

A v = \frac{4000Ω}{4000Ω + 350Ω + \frac{240Ω}{65 + 1}}

Next Step Prepare to Evaluate

∴

A v = \frac{4000}{4000 + 350 + \frac{240}{65 + 1}}

Next Step Evaluate

∴

A v = 0.91877218626018dB

LAST Step Rounding Answer

∴

A v = 0.9188dB

Overall Voltage Gain of Buffer Amplifier given Load Resistance Formula Elements

Variables

Voltage Gain

Voltage gain is defined as the ratio of the output voltage to the input voltage.

Symbol: A_v

Measurement: SoundUnit: dB

Note: Value can be positive or negative.

Formulas to find Voltage Gain

Load Resistance

Load Resistance is the external resistance or impedance that is connected to the output of a circuit or device, and it is used to extract power or signal from the circuit.

Symbol: R_L

Measurement: Electric ResistanceUnit: kΩ

Note: Value can be positive or negative.

Formulas to find Load Resistance

Emitter Resistance

Emitter Resistance is a dynamic resistance of the emitter-base junction diode of a transistor.

Symbol: R_e

Measurement: Electric ResistanceUnit: kΩ

Note: Value can be positive or negative.

Formulas to find Emitter Resistance

Signal Resistance

Signal Resistance is the resistance which is fed with the signal voltage source vs to an Amplifier.

Symbol: R_s

Measurement: Electric ResistanceUnit: kΩ

Note: Value can be positive or negative.

Formulas to find Signal Resistance

Common Emitter Current Gain

Common emitter current gain is influenced by 2 factors: width of base region W, and relative dopings of base region and emitter region. Its range varies from 50-200.

Symbol: β

Measurement: NAUnit: Unitless

Note: Value should be between 49 to 201.

Formulas to find Common Emitter Current Gain

Other Formulas to find Voltage Gain

Go Voltage Gain given Collector Current

A v = - (\frac{I c}{V t}) \cdot R c

Go Voltage Gain given all Voltages

A v = - \frac{V DD - V CE}{V t}

Go Voltage Gain given Transconductance and Collector Resistance

A v = - G m \cdot R c

Go Overall Voltage Gain given Load Resistance of BJT

A v = - G m \cdot (\frac{R c \cdot R L}{R c + R L})

Other formulas in Amplification Factor or Gain category

Go Short-Circuit Current Gain

A i = \frac{I o}{I in}

Go Open Circuit Voltage Gain given Open Circuit Transresistance

A = \frac{R m}{R in}

Go Amplification Factor of BJT

µ f = (\frac{I c}{V th}) \cdot (\frac{V cc + V CE}{I c})

Go Common Mode Gain of BJT

A cm = - (\frac{R c}{2 \cdot R o}) \cdot (\frac{ΔR c}{R c})

How to Evaluate Overall Voltage Gain of Buffer Amplifier given Load Resistance?

Overall Voltage Gain of Buffer Amplifier given Load Resistance evaluator uses Voltage Gain = Load Resistance/(Load Resistance+Emitter Resistance+Signal Resistance/(Common Emitter Current Gain+1)) to evaluate the Voltage Gain, Overall Voltage Gain of Buffer Amplifier given Load Resistance is the ratio of the output voltage to the input voltage. It is designed to provide a high input impedance and a low output impedance, which helps to prevent loading of the input signal source and to provide a low-impedance output that can drive other circuits. Voltage Gain is denoted by A_v symbol.

How to evaluate Overall Voltage Gain of Buffer Amplifier given Load Resistance using this online evaluator? To use this online evaluator for Overall Voltage Gain of Buffer Amplifier given Load Resistance, enter Load Resistance (R_L), Emitter Resistance (R_e), Signal Resistance (R_s) & Common Emitter Current Gain (β) and hit the calculate button.

FAQs on Overall Voltage Gain of Buffer Amplifier given Load Resistance

What is the formula to find Overall Voltage Gain of Buffer Amplifier given Load Resistance?

The formula of Overall Voltage Gain of Buffer Amplifier given Load Resistance is expressed as Voltage Gain = Load Resistance/(Load Resistance+Emitter Resistance+Signal Resistance/(Common Emitter Current Gain+1)). Here is an example- 0.918772 = 4000/(4000+350+240/(65+1)).

How to calculate Overall Voltage Gain of Buffer Amplifier given Load Resistance?

With Load Resistance (R_L), Emitter Resistance (R_e), Signal Resistance (R_s) & Common Emitter Current Gain (β) we can find Overall Voltage Gain of Buffer Amplifier given Load Resistance using the formula - Voltage Gain = Load Resistance/(Load Resistance+Emitter Resistance+Signal Resistance/(Common Emitter Current Gain+1)).

What are the other ways to Calculate Voltage Gain?

Here are the different ways to Calculate Voltage Gain-

Voltage Gain=-(Collector Current/Thermal Voltage)*Collector Resistance
Voltage Gain=-(Supply Voltage-Collector-Emitter Voltage)/Thermal Voltage
Voltage Gain=-Transconductance*Collector Resistance

Can the Overall Voltage Gain of Buffer Amplifier given Load Resistance be negative?

Yes, the Overall Voltage Gain of Buffer Amplifier given Load Resistance, measured in Sound can be negative.

Which unit is used to measure Overall Voltage Gain of Buffer Amplifier given Load Resistance?

Overall Voltage Gain of Buffer Amplifier given Load Resistance is usually measured using the Decibel[dB] for Sound. Bel[dB], Neper[dB] are the few other units in which Overall Voltage Gain of Buffer Amplifier given Load Resistance can be measured.

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Overall Voltage Gain of Buffer Amplifier given Load Resistance Formula

​GoVoltage Gain given Collector Current Formula

​GoVoltage Gain given all Voltages Formula

Overall Voltage Gain of Buffer Amplifier given Load Resistance Example

Overall Voltage Gain of Buffer Amplifier given Load Resistance Solution

Overall Voltage Gain of Buffer Amplifier given Load Resistance Formula Elements

Other Formulas to find Voltage Gain

Other formulas in Amplification Factor or Gain category

How to Evaluate Overall Voltage Gain of Buffer Amplifier given Load Resistance?

FAQs on Overall Voltage Gain of Buffer Amplifier given Load Resistance

Variable Name

GoVoltage Gain given Collector Current Formula

GoVoltage Gain given all Voltages Formula