1. Advantages and Disadvantages of Series and Parallel Circuits

2. Parallel Circuit Series Circuit Two or more pathways
Current splits, passes through pathways, and adds up again
Voltage across each pathway equals supply voltage
One pathway (circuit)
Current (flow of electric charge) same anywhere in the circuit
Voltage (measure of strength of electrical power) shared in ratio to resistance

3. Parallel Circuit Series Circuit
Resistance (reduction of electrical current) adds up, draws less current = battery (power source) lasts longer
Total resistance less than the least resistance, current drawn is less = battery life short

4. Parallel Circuit Series Circuit
One bulb (load) fuses, circuit incomplete (open or broken)
Brightness of bulbs less because P = IV
P (Power), I (Current), V (Voltage)
One bulb fuses, the others will still work
Brightness of bulbs more

5. Similarities
Converts electrical energy to light, heat, sound, etc.