Power

Rate at which energy is transferred

Formula

$P=\frac{W}{△t}=\frac{△E}{△t}$ $P=F(\overrightarrow{v})$ $P=V\ast A$ where:

• $V$ is Voltage
• $A$ is Current

SI Unit

$Watts(W)$

Power Rating

• Higher power for a blow-dryer, the faster it blows your hair.
• Hair dryers tend to operate at 1000W