Interactive Ohm's Law Simulator

Understanding Ohm's Law

Ohm's Law describes the relationship between voltage, current, and resistance in an electrical circuit.

The fundamental formula is:

V = I × R

Where:

• V = Voltage (Volts) - The electrical potential difference
• I = Current (Amperes) - The flow of electric charge
• R = Resistance (Ohms) - Opposition to current flow

Key observations:

• Increasing voltage increases current if resistance stays constant
• Increasing resistance decreases current if voltage stays constant
• Power (P) is calculated as voltage multiplied by current (P = V × I)

The animation shows electron drift velocity, which is proportional to current. Higher current means faster electron movement.