Enter the total resistance, length, and cross-sectional area of a component. The calculator will evaluate and display the resistivity.

- Wire Resistance Calculator
- Resistor Divider Calculator
- Internal Resistance Calculator
- Parallel Resistance Calculator
- Series Resistance Calculator

## Resistivity Formula

The following equation is used to calculate the resistivity of an electrical component or wire.

p = R * A / L

- Where p is the resistivity
- R is the resistance
- A is the cross-sectional area
- L is the length

## Resistivity Definition

Resistivity is a term used in electronics that describes the rate at which a component or wire resists flow of electrons or electricity. It’s a resistance per unit of distance. So the longer the wire the lower the resistivity and vice versa.

## Resistivity Example

How to calculate resistivity?

**First, determine the resistance.**Measure the total resistance of the component/wire.

**Next, determine the cross-sectional area.**Measure the cross-sectional area of the wire.

**Next, determine the length.**Measure the overall length of the wire.

**Finally, calculate the resistivity.**Calculate the resistivity of the wire using the formula above.

## FAQ

**What is resistivity?**

Resistivity is a measure of the rate at which a wire or electrical component resists the flow of electrons.

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