Electric power is calculated using the formula:
Power (P) = Voltage (V) × Current (I)
where:
Power (P) is measured in watts (W).
Voltage (V) is measured in volts (V).
Current (I) is measured in amperes or amps (A).
In some cases, you might encounter variations of this formula based on the relationship between voltage, current, and resistance:
Power (P) = Voltage (V)² / Resistance (R)
Power (P) = Current (I)² × Resistance (R)
where:
Resistance (R) is measured in ohms (Ω).
These formulas help you calculate the amount of electric power being used or transferred in a circuit. Remember that power is the rate at which energy is being consumed or delivered, and it's an essential concept in understanding electrical systems and their efficiency.