Hum. Confused.(adsbygoogle = window.adsbygoogle || []).push({});

Two charges -4.0mC and -5.0mC are separated by a distance of 20cm. What is the electric field halfway between the charges?

Coulombe's law only tells me the force on a particle next to another one. I don't know the formula for calculating an electric field, let alone what it equals halfway between two charged particles. any help is appreciated.

**Physics Forums | Science Articles, Homework Help, Discussion**

Dismiss Notice

Join Physics Forums Today!

The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

# Electric field question.

**Physics Forums | Science Articles, Homework Help, Discussion**