What Are the Rules for Series and Parallel Circuits

Voltage drops add to equal total voltage.All components share the same (equal) current.Resistances add to equal total resistance.

What are the 3 rules for parallel circuits?

From this definition, three rules of parallel circuits follow: All components share the same voltage. Resistances diminish to equal a smaller, total resistance. Branch currents add to equal a larger, total current.

What are the rules for current and potential difference in series and parallel circuits?

In parallel circuits, the electric potential difference across each resistor (ΔV) is the same. The current in a resistor follows Ohm’s law: I = ΔV / R. Since the ΔV is the same for each resistor, the current will be smallest where the resistance is greatest.