Ohm's Law

📊 beginner

$$V = IR$$

States that the current through a conductor is proportional to the voltage across it.

Variables & Units

$V$

Voltage

Unit: Volt ($V$)

$I$

Current

Unit: Ampere ($A$)

$R$

Resistance

Unit: Ohm ($\Omega$)

Key Information

📐 Derived From

Empirical observation in conductors.

💡 Example

A $10 \Omega$ resistor with $2 A$ current has a voltage drop of $20 V$.

🔧 Applications

Electronic circuit analysis and power distribution.

⚠️ Constraints

Applies only to ohmic materials at constant temperature.

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