Enter the total capacitance and total resistance of an RC circuit into the calculator. The calculator will evaluate the RC time constant of the circuit.

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## RC Time Constant Formula

The follow formula is used to calculate the RC time constant of an RC circuit.

t = R * C

- Where t is the time constant (s)
- R is the total resistance
- C is the total capacitance

## RC Time Constant Definition

An RC Time constant is defined as the product of the resistance and capacitance within a circuit and is a measure of the voltage loss with respect to time.

## RC Time Constant Definition

How to calculate an RC time constant

**First, measure the total resistance**Calculate or measure the total resistance in the circuit.

**Next, measure the total capacitance**Calculate or measure the total capacitance in the circuit.

**Calculate the time constant**Calculate the RC time constant using the total capacitance and total resistance measure in steps 1 and 2.

## FAQ

**What is a time constant?**

A time constant is a measure of the voltage loss across an RC circuit with respect to time. It’s completely dependent on the capacitance and the resistance of the circuit.

**What is resistance?**

A resistance is a force acting against the flow of electricity or electrons.

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