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chapter18-web1

# chapter18-web1 - Chapter 18 Direct Current Circuits 1...

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1 Chapter 18 Direct Current Circuits

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2 Chapter 18 1. emf 2. Resistors in Circuits 3. Kirchhoff’s Rules 4. RC circuits
3 Sources of emf s What is emf ? s What is the SI units? s What is terminal voltage?

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4 Internal Resistance s What is internal resistance? s How do I calculate terminal voltage? s What about the circuit? s What is an open circuit? s What is a load resistance? s The case for R>>r
5 Example A battery having an emf of 9 V delivers 117 mA when connected to a 72 ohms load. Determine the internal resistance of the battery.

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6 Resistors in Series s What is a series connection? s What happens to current? s What about voltage? s What about equivalent resistance?
7 Equivalent Resistance – Series: An Example s Four resistors are replaced with their equivalent resistance

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8 Resistors in Parallel s What is parallel connection? s What happens to current? s What about voltage? s How do I calculate equivalent resistance?
9 Equivalent Resistance – Parallel Example

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10 Equivalent Resistance – Complex Circuit
11 Parallel Circuits s What is the advantage?

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chapter18-web1 - Chapter 18 Direct Current Circuits 1...

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