Chapter 22 Homework Solutions
2. In the figure the electric field lines on the left have twice the separation of those on the right. (a) If the
magnitude of the field at A is 60 N/C, what is the magnitude of the force on a proton at A? (b) What is the
mag
ELECTRICITY AND MAGNETISM
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Exam 4 Review Questions
PHY 2425 - Exam 4
Section: 122 Topic: The Center of Gravity Type: Conceptual
8. After a shell explodes at the top of its trajectory, the center of gravity of the fragments
has an acceleration, in the absence of air resistance,
A) o
Example 1.4
Consider an infinitely long cylinder with charge density ,
dielectric constant 0 and radius r0 . What is the electric field in
and around the cylinder?
L
r0
r
0
Solution
Because of the cylinder symmetry one expects the electric field
to be onl
PQ 3 Heat
Questions
Q and A
PQ1
A 0.500 kg aluminum pan on a stove is used to
heat 0.250 litres of water from 20.0C to
80.0C . (a) How much heat is required? What
percentage of the heat is used to raise the
temperature of (b) the pan and (c) the water?
Lecture 17
2
= k a sin =
a sin
EP = EO
sin
2
2
2
= k a sin =
a sin
sin
2
I = IO
2
2
Clicker Question
Diffraction occurs when light passes a:
A) pinhole
B) narrow slit
C) wide slit
D) sharp edge
E) all of the above
Clicker Question
The pattern on