<p align="right">Last Update: <font color="#4f81bd">July, 27, 2024</font></p> ## BIG IDEA The voltage (V) across a resistor is directly proportional to the current (I) flowing through it, with the resistance (R) being the proportional constant. ### Formula $V \ = \ IR$ where $V$ is the voltage in volts, $I$ is the current in amperes ($A$), and $R$ is resistance in ohms ($\Omega$). --- Return [[Home|Home]] | [[Notes Vault/Physics Notes Vault/DC Circuits/Electric Circuits|Circuits]] | [[Electric Current]] | [[Voltage]] | [[Resistance]] | [[Resistors]] | [[Notes Vault/Physics Notes Vault/DC Circuits/Ohm's Law|Ohm's Law]] | [[Notes Vault/Physics Notes Vault/DC Circuits/Power|Power]]