1. PARALLEL CIRCUITS HAVE MORE THAN ONE POSSIBLE PATHWAY FOR ELECTRONS.

2. PARALLEL CIRCUITS CAN HAVE MANY ORIENTATIONS.

3. PARALLEL CIRCUITS HAVE A COMPLETELY DIFFERENT SET OF RULES COMPARED TO SERIES CIRCUITS.

4. AS YOU ADD RESISTORS IN PARALLEL, THE EQUIVALENT (TOTAL) RESISTANCE DECREASES. 20 Ω 30 Ω

5. YOU CAN ALSO LOOK AT TOTAL EQUIVALENCY (AKA EQUIVALENT RESISTANCE ) AS SIMPLIFYING THE CIRCUIT TO THE SIMPLEST FORM.

6. IN A PARALLEL CIRCUIT THE TOTAL CURRENT THROUGH THE BATTERY EQUALS THE SUM OF THE CURRENT THROUGH EACH BRANCH. 10 Ω

7. AS YOU ADD RESISTORS IN PARALLEL THE TOTAL AMOUNT OF CURRENT INCREASES BECAUSE TOTAL RESISTANCE DECREASES. 1. 2. 3. I T = 3 A I T = 2 A I T = 1 A I T = 4 A

8. AS YOU ADD RESISTORS IN PARALLEL THE TOTAL AMOUNT OF CURRENT INCREASES. 1. 2. 3. 20 Ω 30 Ω

9. THE VOLTAGE GAINED ACROSS THE BATTERY IS DROPPED EQUALLY AND IN TOTAL ACROSS EACH RESISTOR. 20 Ω 30 Ω

10. SOLVING CIRCUITS WITH RESISTORS IN PARALLEL. ResistorRIV 1 2 Total 4 Ω 12 V 2 Ω 12 V 3 A 6 A 12 V

11. SOLVING CIRCUITS WITH RESISTORS IN PARALLEL. ResistorRIV 1 2 Total 5 Ω 10 Ω 15 V 3.3 Ω 15 V 3 A 1.5 A 4.5 A 15 V

12. SOLVING CIRCUITS WITH RESISTORS IN PARALLEL. ResistorRIV 1 2 3 Total 3 Ω 4 Ω 12 V 1.3 Ω 12 V 4 A 3 A 9 A 12 V 6 Ω 12 V2 A