Calcolatrice Potenziale Elettrico — Formula
## Electric Potential
Electric potential (voltage) at a point is the work done per unit charge to bring a positive test charge from infinity to that point.
### Formula
**V = k * Q / r**
Unlike electric field, potential is a scalar quantity. It can be positive or negative depending on the sign of the source charge.
Electric potential (voltage) at a point is the work done per unit charge to bring a positive test charge from infinity to that point.
### Formula
**V = k * Q / r**
Unlike electric field, potential is a scalar quantity. It can be positive or negative depending on the sign of the source charge.
Esempio Risolto
Potential 10 cm from a 1 microcoulomb charge.
- V = k * Q / r
- V = 8.9875e9 * 1e-6 / 0.1
- V = 8987.5 / 0.1
- V = 89,875 V