THAT WORK WITH ELECTRICITY
reading this section you will be able to do the following:
a variety of ways electricity affects our lives.
Electricity has a very large influence
on our lives, but it is not well understood by many people. Electricity
is used to power many of the things that we use every day. Below
are some of the things that use electricity.
You probably do not
have to think too hard to come up with some examples on your
just look around you. Since electricity is so important to your
life, you need to know something about it. This lesson will
you to some of the basic facts about electricity and electromagnetism.
You will also learn a little about how electricity is used
find defects in critical parts before the parts break and cause
problems. The instrument above in the lower right is called
Eddy Current Scope and it uses little electrical currents
called "eddy currents" to find defects in things like
jet engine parts. In the career field of nondestructive testing
or NDT, engineers and technicians use eddy current inspection
to inspect a lot of different things and to make measurements.
You will learn more about NDT in the following pages.
- Many everyday
household devices use electricity.
electricity, our lives would be very different and in many cases
current testing uses electricity to find defects in parts