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Output Resistance of BJT Formula

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Resistance is a measure of the opposition to current flow in an electrical circuit. Its S.I unit is ohm. Check FAQs

R = \frac{V DD + V CE}{I c}

R - Resistance?V_DD - Supply Voltage?V_CE - Collector-Emitter Voltage?I_c - Collector Current?

Output Resistance of BJT Example

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Here is how the Output Resistance of BJT equation looks like with Values.

Here is how the Output Resistance of BJT equation looks like with Units.

Here is how the Output Resistance of BJT equation looks like.

1.13 = \frac{2.5 + 3.15}{5}

1.13kΩ = \frac{2.5V + 3.15V}{5mA}

1.13 = \frac{2.5 + 3.15}{5}

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Output Resistance of BJT Solution

Follow our step by step solution on how to calculate Output Resistance of BJT?

FIRST Step Consider the formula

R = \frac{V DD + V CE}{I c}

Next Step Substitute values of Variables

∴

R = \frac{2.5V + 3.15V}{5mA}

Next Step Convert Units

∴

R = \frac{2.5V + 3.15V}{0.005A}

Next Step Prepare to Evaluate

∴

R = \frac{2.5 + 3.15}{0.005}

Next Step Evaluate

∴

R = 1130Ω

LAST Step Convert to Output's Unit

∴

R = 1.13kΩ

Output Resistance of BJT Formula Elements

Variables

Resistance

Resistance is a measure of the opposition to current flow in an electrical circuit. Its S.I unit is ohm.

Symbol: R

Measurement: Electric ResistanceUnit: kΩ

Note: Value can be positive or negative.

Formulas to find Resistance

Supply Voltage

Supply Voltage is the input voltage source that flows through the BJT.

Symbol: V_DD

Measurement: Electric PotentialUnit: V

Note: Value should be greater than 0.

Formulas to find Supply Voltage

Collector-Emitter Voltage

Collector-Emitter Voltage is the electric potential between the base and collector region of a transistor.

Symbol: V_CE

Measurement: Electric PotentialUnit: V

Note: Value can be positive or negative.

Formulas to find Collector-Emitter Voltage

Collector Current

Collector current is an amplified output current of a bipolar junction transistor.

Symbol: I_c

Measurement: Electric CurrentUnit: mA

Note: Value can be positive or negative.

Formulas to find Collector Current

Other formulas in Resistance category

Go Common-Base Current Gain

α = \frac{β}{β + 1}

Go Intrinsic Gain of BJT

A o = \frac{V A}{V t}

Go Total Power Dissipated in BJT

P = V CE \cdot I c + V BE \cdot I B

Go Common Mode Rejection Ratio

CMRR = 20 \cdot \log 10 (\frac{A d}{A cm})

How to Evaluate Output Resistance of BJT?

Output Resistance of BJT evaluator uses Resistance = (Supply Voltage+Collector-Emitter Voltage)/Collector Current to evaluate the Resistance, The Output resistance of BJT is the ratio of voltage to the current flowing in or out of these terminals. Resistance is denoted by R symbol.

How to evaluate Output Resistance of BJT using this online evaluator? To use this online evaluator for Output Resistance of BJT, enter Supply Voltage (V_DD), Collector-Emitter Voltage (V_CE) & Collector Current (I_c) and hit the calculate button.

FAQs on Output Resistance of BJT

What is the formula to find Output Resistance of BJT?

The formula of Output Resistance of BJT is expressed as Resistance = (Supply Voltage+Collector-Emitter Voltage)/Collector Current. Here is an example- 0.00113 = (2.5+3.15)/0.005.

How to calculate Output Resistance of BJT?

With Supply Voltage (V_DD), Collector-Emitter Voltage (V_CE) & Collector Current (I_c) we can find Output Resistance of BJT using the formula - Resistance = (Supply Voltage+Collector-Emitter Voltage)/Collector Current.

Can the Output Resistance of BJT be negative?

Yes, the Output Resistance of BJT, measured in Electric Resistance can be negative.

Which unit is used to measure Output Resistance of BJT?

Output Resistance of BJT is usually measured using the Kilohm[kΩ] for Electric Resistance. Ohm[kΩ], Megohm[kΩ], Microhm[kΩ] are the few other units in which Output Resistance of BJT can be measured.

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Output Resistance of BJT Formula

Output Resistance of BJT Example

Output Resistance of BJT Solution

Output Resistance of BJT Formula Elements

Other formulas in Resistance category

How to Evaluate Output Resistance of BJT?

FAQs on Output Resistance of BJT

Variable Name