Physics - Electricity - Static - Electric potential and voltage - Electric Potential and Voltage

A 5-step lesson. Step 1: 'Electric potential V at a point = energy per unit positive charge at that point. V = W/q = kQ/r (for a point charge). Units: Volts (V) = Joules per Coulomb. It's a SCALAR (not a vector).' Step 2: 'Potential difference (p.d.) = voltage = the difference in potential between t