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Time Constant for RL Circuit Formula

GoTime Constant for RC Circuit Formula

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Time constant is the response representing the elapsed time required for the system response to decay to zero if the system had continued to decay at the initial rate. Check FAQs

τ = \frac{L}{R}

τ - Time Constant?L - Inductance?R - Resistance?

Time Constant for RL Circuit Example

With values

With units

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Here is how the Time Constant for RL Circuit equation looks like with Values.

Here is how the Time Constant for RL Circuit equation looks like with Units.

Here is how the Time Constant for RL Circuit equation looks like.

0.0132 = \frac{0.79}{60}

0.0132ms = \frac{0.79mH}{60Ω}

0.0132 = \frac{0.79}{60}

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Time Constant for RL Circuit Solution

Follow our step by step solution on how to calculate Time Constant for RL Circuit?

FIRST Step Consider the formula

τ = \frac{L}{R}

Next Step Substitute values of Variables

∴

τ = \frac{0.79mH}{60Ω}

Next Step Convert Units

∴

τ = \frac{0.0008H}{60Ω}

Next Step Prepare to Evaluate

∴

τ = \frac{0.0008}{60}

Next Step Evaluate

∴

τ = 1.31666666666667E-05s

Next Step Convert to Output's Unit

∴

τ = 0.0131666666666667ms

LAST Step Rounding Answer

∴

τ = 0.0132ms

Time Constant for RL Circuit Formula Elements

Variables

Time Constant

Time constant is the response representing the elapsed time required for the system response to decay to zero if the system had continued to decay at the initial rate.

Symbol: τ

Measurement: TimeUnit: ms

Note: Value should be greater than 0.

Formulas to find Time Constant

Inductance

Inductance is the tendency of an electrical conductor to oppose a change in the electric current flowing through it. The flow of electric current creates a magnetic field around the conductor.

Symbol: L

Measurement: InductanceUnit: mH

Note: Value should be greater than 0.

Formulas to find Inductance

Resistance

Resistance is a measure of the opposition to current flow in an electrical circuit. Resistance is measured in ohms, symbolized by the Greek letter omega (Ω).

Symbol: R

Measurement: Electric ResistanceUnit: Ω

Note: Value can be positive or negative.

Formulas to find Resistance

Other Formulas to find Time Constant

Go Time Constant for RC Circuit

τ = R \cdot C

Other formulas in Time Constant category

Go Electrical Angle

θ e = (\frac{N p}{2}) \cdot θ m

How to Evaluate Time Constant for RL Circuit?

Time Constant for RL Circuit evaluator uses Time Constant = Inductance/Resistance to evaluate the Time Constant, The Time Constant for RL Circuit is the time after which the voltage across a capacitor reaches its maximum value if the initial rate of rising voltage is maintained. Time Constant is denoted by τ symbol.

How to evaluate Time Constant for RL Circuit using this online evaluator? To use this online evaluator for Time Constant for RL Circuit, enter Inductance (L) & Resistance (R) and hit the calculate button.

FAQs on Time Constant for RL Circuit

What is the formula to find Time Constant for RL Circuit?

The formula of Time Constant for RL Circuit is expressed as Time Constant = Inductance/Resistance. Here is an example- 13.16667 = 0.00079/60.

How to calculate Time Constant for RL Circuit?

With Inductance (L) & Resistance (R) we can find Time Constant for RL Circuit using the formula - Time Constant = Inductance/Resistance.

What are the other ways to Calculate Time Constant?

Here are the different ways to Calculate Time Constant-

Time Constant=Resistance*Capacitance

Can the Time Constant for RL Circuit be negative?

No, the Time Constant for RL Circuit, measured in Time cannot be negative.

Which unit is used to measure Time Constant for RL Circuit?

Time Constant for RL Circuit is usually measured using the Millisecond[ms] for Time. Second[ms], Microsecond[ms], Nanosecond[ms] are the few other units in which Time Constant for RL Circuit can be measured.

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