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Small-Signal Input Resistance given Emitter Current Formula

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Small signal is an AC signal (more technically, a signal having zero average value) superimposed on a bias signal (or superimposed on a DC constant signal). Check FAQs

V ss = i si \cdot R e

V_ss - Small Signal?i_si - Signal Current?R_e - Emitter Resistance?

Small-Signal Input Resistance given Emitter Current Example

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Here is how the Small-Signal Input Resistance given Emitter Current equation looks like with Values.

Here is how the Small-Signal Input Resistance given Emitter Current equation looks like with Units.

Here is how the Small-Signal Input Resistance given Emitter Current equation looks like.

0.9275 = 2.65 \cdot 0.35

0.9275V = 2.65mA \cdot 0.35kΩ

0.9275 = 2.65 \cdot 0.35

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Small-Signal Input Resistance given Emitter Current Solution

Follow our step by step solution on how to calculate Small-Signal Input Resistance given Emitter Current?

FIRST Step Consider the formula

V ss = i si \cdot R e

Next Step Substitute values of Variables

∴

V ss = 2.65mA \cdot 0.35kΩ

Next Step Convert Units

∴

V ss = 0.0026A \cdot 350Ω

Next Step Prepare to Evaluate

∴

V ss = 0.0026 \cdot 350

LAST Step Evaluate

∴

V ss = 0.9275V

Small-Signal Input Resistance given Emitter Current Formula Elements

Variables

Small Signal

Small signal is an AC signal (more technically, a signal having zero average value) superimposed on a bias signal (or superimposed on a DC constant signal).

Symbol: V_ss

Measurement: Electric PotentialUnit: V

Note: Value can be positive or negative.

Formulas to find Small Signal

Signal Current

Signal current is the current in the amplified output current of a transistor.

Symbol: i_si

Measurement: Electric CurrentUnit: mA

Note: Value can be positive or negative.

Formulas to find Signal Current

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

Other formulas in Resistance category

Go Small-Signal Input Resistance between Base and Emitter

R s = \frac{V in}{I B}

Go Small-Signal Input Resistance between Base and Emitter using Transconductance

R s = \frac{β}{G m}

Go Small-Signal Input Resistance between Base and Emitter using Base Current

R s = \frac{V th}{I B}

Go Emitter Resistance given Threshold Voltage

R e = \frac{V th}{I e}

How to Evaluate Small-Signal Input Resistance given Emitter Current?

Small-Signal Input Resistance given Emitter Current evaluator uses Small Signal = Signal Current*Emitter Resistance to evaluate the Small Signal, The Small-signal input resistance given emitter current suggests that for a small signal, the transistor behaves as a voltage-controlled current source. The input port of the controlled current source is between base and emitter and the output port is in between collector and emitter. Small Signal is denoted by V_ss symbol.

How to evaluate Small-Signal Input Resistance given Emitter Current using this online evaluator? To use this online evaluator for Small-Signal Input Resistance given Emitter Current, enter Signal Current (i_si) & Emitter Resistance (R_e) and hit the calculate button.

FAQs on Small-Signal Input Resistance given Emitter Current

What is the formula to find Small-Signal Input Resistance given Emitter Current?

The formula of Small-Signal Input Resistance given Emitter Current is expressed as Small Signal = Signal Current*Emitter Resistance. Here is an example- 0.9275 = 0.00265*350.

How to calculate Small-Signal Input Resistance given Emitter Current?

With Signal Current (i_si) & Emitter Resistance (R_e) we can find Small-Signal Input Resistance given Emitter Current using the formula - Small Signal = Signal Current*Emitter Resistance.

Can the Small-Signal Input Resistance given Emitter Current be negative?

Yes, the Small-Signal Input Resistance given Emitter Current, measured in Electric Potential can be negative.

Which unit is used to measure Small-Signal Input Resistance given Emitter Current?

Small-Signal Input Resistance given Emitter Current is usually measured using the Volt[V] for Electric Potential. Millivolt[V], Microvolt[V], Nanovolt[V] are the few other units in which Small-Signal Input Resistance given Emitter Current can be measured.

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Small-Signal Input Resistance given Emitter Current Formula

Small-Signal Input Resistance given Emitter Current Example

Small-Signal Input Resistance given Emitter Current Solution

Small-Signal Input Resistance given Emitter Current Formula Elements

Other formulas in Resistance category

How to Evaluate Small-Signal Input Resistance given Emitter Current?

FAQs on Small-Signal Input Resistance given Emitter Current

Variable Name