One of the formulas for calculating electrical power is
Power = (voltage)² / (resistance)
Since this problem wants us to find the voltage, let's
re-arrange the formula.
Multiply each side by (resistance):
(Voltage)² = (power) x (resistance)
Take the square root of each side:
Voltage = √ (power x resistance)
THERE's the formula we can use to find the voltage for this problem.
Voltage = √ (2,083 W x 25.4 Ω)
Voltage = √ (52,908.2 W-Ω )
Voltage = 230 volts
