Physics for Scientists and Engineers
6th Edition
ISBN: 9781429281843
Author: Tipler
Publisher: MAC HIGHER
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Chapter 27, Problem 26P
To determine
The graph between
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Problem 1:
Two long thin parallel wires are 0.1 m apart and each wire carries a current of 12 A. The current
for the wire on the left is into the page and the current for the wire on the right is out of the
page. What is B at point P, 0.08 m from one wire and 0.06 m from the other wire?
Hint: Point P is on the corner of the right triangle with the right angle.
Answer: B = −(1.4 × 10−5 T)î − (4.8 × 10-5 T)ĵ.
0.08 m -
X
0.1 m-
I
-0.06 m
Four wires meet at a junction. In two of the wires, currents I1
= 1.35 A and I2
2.03 A enter the junction. In one of the wires,
current I3 = 6.37 A leaves the junction. Find the current magnitude in the fourth wire, I4, and indicate its direction.
direction:
I4 =
A
undetermined
out of the junction
O into the junction
Two wires of circular cross section are made of the same metal.Wire 1 has radius r and length L; wire 2 has radius 2r and length 2L. Thepotential difference between the ends of the wire is the same for both wires.For each of the following quantities, find the ratio of its value for wire 2to its value for wire 1: current in the wire
Chapter 27 Solutions
Physics for Scientists and Engineers
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