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# pp26 - PHYSICS A World View Tuesday 26 April 2005 READ PRAC...

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PHYSICS: A World View Tuesday, 26 April 2005 READ PRAC HW LAB Ch 21: Q 34, 35, 36, 37, 42, 45

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Time to evaluate Greg’s teaching
Rank all the bulbs below for brightness. Explain your reasoning. A C B A>B=C A gets all of the current while B and C each get half of total the current. B and C share equally since each branch has equal resistance. Be the river

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Rank the bulbs Rank all the bulbs below for brightness. Explain your reasoning. Batteries and bulbs are all the same. A C B F E D A=F>B=C=D=E Both circuits have the same current. Which comes first does not matter.
Current favors the branch of least resistance. C<D Less current will take the left branch since it has more resistance than the right branch. Which is brighter, C or D? Explain. A C B D Ranking: A>D>B=C Be the river

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A C B D E E>A=B>C=D Be the river
Parallel paths: 1,000,000 1 The equivalent resistance is: A) greater than 1,000,000 Β29 between 1 and 1,000,000 C) less than 1

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Parallel paths: 1,000,000 1 The equivalent resistance is: A) greater than 1,000,000 Β29 between 1 and 1,000,000 C) less than 1
Rank the Resistances A E R R

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Rank the Resistances

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