Electric Power

Electrical Power

Power is the rate of energy transfer. For an electrical component:

$P = VI$

Combined with Ohm's law ($V = IR$), three equivalent forms emerge:

P = VI = I^2 R = rac{V^2}{R}

• P — power (watts, W)
• V — voltage (V)
• I — current (A)
• R — resistance (Ω)

The Power Triangle

Examples

Your Task

Implement electric_power(V, I) returning power in watts.