Examples of Power Point Drawings

Some Important Definitions

motion of sourceT

head line thread

x

y

P P

tail line

hr

tr

S S

ray line

rr

shr

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

S

load

Inserting an External Drawing

Forward and Backward Angles

θθ P1P2

The force is the same at P1 and P2.

BMP fileJPG 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

+

0v

F

+

path of charge

0dt

dpF

dt

pdF y

y

An observer moves upward with velocity v0 .

The Rod and the Point Charge

0v

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

(b)

(a)• 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.

Static Electric Fields in a

Conductor

(b)

(a)

(c)

• 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).

Animated GIF from MAPLE

head line

tail line

A little later…