Transcript Graphics Power Point - BYU Physics and Astronomy

Examples of Power Point Drawings
Some Important Definitions
y
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h
line
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tail rt

thread


ray rr
line
line


S
P
P
S
rh  s T
 motion of source

x
Commutators
A typical AC generator or motor uses double
commutators. Each end of the loop is connected
to a separate commutator.
Inserting an External Graph
AC Generators
With double commutators, we get a sinusoidal
current out of a generator.
N
load
S
Inserting an External Drawing
Forward and Backward Angles
θ
P2
The force is the same at P1 and P2.
P1
θ
JPG file
BMP file
GIF file
Writing Data to External Files
MATLAB makes publication quality figures
-- but you may want to export MATLAB data.
Maple graphics are not often very good
for publication..
Using Equations and ‘Cartoon” Drawings
The Rod and the Point Charge
 +
v0

v0
+
path of charge

F
 d p
F
dt
 Fy 
dp y
dt
0
An observer moves upward
with velocity v0 .
Two Things for Slide Shows
Building a Complicated Slide
Static Electric Fields in a Conductor
• A conductor is near a point charge.
(a) shows the field of the point
charge by itself.
(a)
Static Electric Fields in a Conductor
• A conductor is near a point charge.
(a) shows the field of the point
charge by itself.
• Charges in the conductor rearrange
themselves so that their electric field
is equal and opposite to the field of
the point charge. (b) shows the field
of the conductor by itself.
(a)
(b)
Static Electric Fields in a Conductor
• A conductor is near a point charge.
(a) shows the field of the point
charge by itself.
• Charges in the conductor rearrange
themselves so that their electric field
is equal and opposite to the field of
the point charge. (b) shows the field
of the conductor by itself.
• The total field is the vector sum of
the two individual fields. This is
shown in (c).
(a)
(b)
(c)
Animated GIF from MAPLE
A little later…
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