# How does the temperature depend on the resistance?

## Electrical resistance

Illustration of electrical resistance

### Illustration of the electrical resistance

The electrical resistance is a measure of how much voltage is required to achieve a certain current flow (current strength) in an electrical conductor.

This can be illustrated with the following comparisons:

• water
If you stand on the bank of a large river, significantly more water can flow past with the same gradient than with a narrow river
• traffic
You stand at the edge of a street. Significantly more cars can pass by on a three-lane highway than on a single-lane highway

### Electrical Resistance Facts

• Unit: 1 Ohm (Ω)
• The higher the electrical resistance of a conductor,
the lower the current flow / the current strength (indirect proportionality)

### What does the electrical resistance of a conductor depend on?

• cross-section
• material
• length
• temperature

More detailed information is available on the Resistance of a conductor page.

Comment # 8678 by 3c, pgrg 1328.03.14 9:25 AM
3c, pgrg 13