How do you calculate power?

A.VERIFIED ANSWERfact-checked by tutors

Power is calculated using the formula P = V × I, where:

P = Power (watts)
V = Voltage (volts)
I = Current (amperes)

Alternative formulas include:

P = I² × R (Power = Current suared × Resistance)
P = V²/R (Power = Voltage suared ÷ Resistance)

For example, if a device operates at 120 volts and draws 5 amperes, its power consumption is 600 watts (120V × 5A = 600W). Power represents the rate at which electrical energy is consumed or converted to other forms of energy like heat or light.

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