Ohm’s Law

Example: A circuit with a resistor.

• Detail: In a simple circuit with a voltage of 12 V and a resistor of 4 ohms, the current (I) can be calculated using Ohm’s Law: V=IRV = IRV=IR. Thus, I=V/R=12V/4Ω=3AI = V/R = 12V/4Ω = 3AI=V/R=12V/4Ω=3A