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Essential University Physics (3rd Edition)
3rd Edition
ISBN: 9780134202709
Author: Richard Wolfson
Publisher: PEARSON
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Textbook Question
Chapter 1, Problem 51P
The semiconductor chip at the heart of a personal computer is a square 4 mm on a side and contains 1010 electronic components.
- (a) What’s the size of each component, assuming they’re square?
- (b) If a calculation requires that electrical impulses traverse 104 components on the chip, each a million times, how many such calculations can the computer perform each second? (Hint: The maximum speed of an electrical impulse is about two-thirds the
speed of light .)
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Problem 04.08 (17 points). Answer the following questions related to the figure below.
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R₁
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R₂
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A Use Kirchhoff's laws to calculate the currents through each battery and resistor in
terms of R1, R2, E1, & E2.
B Given that all the resistances and EMFs have positive values, if E₁ > E2 and R₁ > R2,
which direction is the current flowing through E₁? Through R₂?
C If E1 E2 and R₁ > R2, which direction is the current flowing through E₁? Through
R2?
A 105- and a 45.0-Q resistor are connected in parallel. When this combination is
connected across a battery, the current delivered by the battery is 0.268 A. When the
45.0-resistor is disconnected, the current from the battery drops to 0.0840 A.
Determine (a) the emf and (b) the internal resistance of the battery.
10
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Final circuit
Initial circuit
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Chapter 1 Solutions
Essential University Physics (3rd Edition)
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