610 CHAPTER 17 Current and Resistance
10. Three resistors, A, B, and C, are connected in paral—
lel and attached to a battery, with the resistance of A
being the smallest and the resistance of C the g
Physics 202 Homework, Day 12: Chapter 17: #25,33,34,36,45
25. A certain light bulb has a tungsten filament having a resistance of 15W at 20C, and 160W when hot.
Assume that the equation R = R0 @ 1 +
Conversion
Round electric cable, wire, and wiring
Cable diameter to circle cross-sectional area and vice versa
Cross section is just a two-dimensional view of a slice through an object.
An often as
Name: _ Class Period: _
Classwork: resistance
September 5, 2014
Solve the following problems. Show your work to earn the credit. Each problem is worth 5 points: 1 point
correctly label ALL given, 2 p
Technical Information
The following chapter contains practical information on the behaviour, during and after subsequent treatment, of
the alloys delivered by Isabellenhtte. This information is intend
Problem 1. If a current of 80.0 mA exists in a metal wire, how many electrons flow past a
given cross section of the wire in 10.0 min? Sketch the directions of the current and the
electrons motion.
So
700
CHAPTER 26 CURRENT AND RESISTANCE
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$3M *Wnrked-Qut solution aveﬂableyin V _y I I, I
~ - -~_ ' Number of dots indiCates jewel: of problem difficulty
Name: _
Currents, Resistivity and Ohm's Law - Practice
1. During the 4.0 min a 5.0 A current is set up in a wire.
A. How many coulombs pass through any cross section across the wire's
width?
B. How ma