pp24 - PHYSICS: A World View Tuesday, 19 April 2005 READ Ch...

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PHYSICS: A World View Tuesday, 19 April 2005 READ Ch 21 (pp 443 - 446) PRAC Ch 21: Q 11, 13, 15, 19, 21; E 1, 7 HW #24 Ch 21: Q 2, 8; E 2, 8 Th 21 Apr
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Consider a flashlight …. . battery battery
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Wiring Diagram or a Schematic Battery Battery Resistor Switch
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Predict the relative brightness A B C D E F G H I 1 3 2 4 5 6 7
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Consider some electrical circuits … rank the circuits with the brightest and dimmest light bulbs. Explain your reasoning. Let’s start with a pre-test to get a sense of where we are and where we are going . ..
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CURRENT: Measure of the rate of flow of charge. I = q/ t Measured in coulombs/second, which  we define as the Ampere (A).
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Special Note: The current is actually carried by  electrons (-) but we usually work  as if +’ve charge is moving, which  we call conventional current.
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electron flow
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electron flow
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electron flow
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electron flow
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electron flow
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electron flow
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electron flow
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electron flow
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electron flow
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electron flow
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electron flow
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electron flow
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use an ammeter How do we insert it? I = ? A
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pp24 - PHYSICS: A World View Tuesday, 19 April 2005 READ Ch...

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