1. oneone GTE-8C Objective: To calculate the total resistance in complex circuits in order to apply Ohm’s Law. Energy Note: Can Ohm’s Law be applied to imbedded circuits? Drill: 1. Place your Log Book and your ZIP Sheet on your desk. 2. Get a review sheet from the SET. 3. Review the information on the front of the paper.

2. oneone GTE-8C Activity 1: Recap Find the current going through a parallel circuit powered by a 40 volt source. The circuit has 2 branches, one with a resistance of 3 ohms and the other with a resistance of 8 ohms.

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5. oneone Activity 2: Embedded Circuits ** When there is an imbedded circuit, identify the main structure, then work from the inside out. ** Calculate the total resistance in the circuit below. 1Ω 4Ω 2Ω 4Ω 2Ω 1Ω

6. oneone GTE-8C Calculate the resistance on each branch. Branch 1: 4Ω + 2Ω = 6Ω Branch 2: 2Ω Branch 3: 1Ω + 4Ω + 1Ω = 6Ω Now solve for the total resistance in a parallel circuit.

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8. oneone V = I × R V = 8.5 amps × 1.2 ohms V = 10.2 volts

9. oneone GTE-8C 1.Look over the back of the review sheet from the drill. 2.Example 10 shows a parallel circuit imbedded in a series circuit. 3.Review this problem in order to understand the process.

10. oneone GTE-8C Activity 3: Practice Ditto: Practice Exercise Write your name on the back board if you need individual assistance.

11. oneone GTE-8C HOMEWORK: Ditto – Resistors in a Circuit