Understanding Voltage | Learn on Patio

Voltage as Electrical Pressure

Voltage (V), or electric potential difference, is the work required to move a unit charge between two points.

• Potential difference: ΔV = V₂ – V₁
• Pressure analogy: Pushes electrons through conductors like water pressure pushes fluid in pipes
• Unit: Volt (V) = joule per coulomb (J/C)

Grasping voltage is essential for circuit design, wire sizing, and component selection.