the formula V=IR is used to find the potential difference, in volts, between two points on an electrical circuit. I represents the current in amps and R the resistance in ohms.

The Potential Difference is the drop in voltage that occurs across a resistor as current flows through it. In a circuit, Potential Difference or Voltage (V) = Current (I) * Resistance(R), or to abbreviate V=I*R. In this case, I=5 amps and R=10 ohms, so V= I*R= 5 amps*10 ohms=50 volts.