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"I sent CoolStuff to a new teacher I'm
mentoring. I use CoolStuff all the time and love it. The kids love it and learn from it!"
~ Dixie D. from Texas
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Lab #37.4
Magnetism: Generator
Activator
Purpose
In this activity,
students will investigate
electromagnetic induction, the
principle behind electric
generators.
Discussion
In 1820, Hans
Christian Ørsted found that
electricity could create
magnetism. Scientists were
convinced that if
electricity could create
magnetism, magnetism could
create electricity. Still,
11 years would pass before
the induction of electricity
from magnetism would be
discovered and understood.
The best minds of the day
set out to make this widely
anticipated discovery, but
it was Michael Faraday who
put all the pieces together.
In this activity, we will
use a magnet to create an
electric current and see how
this effect is applied in
electric generators.
Required Equipment
Bar magnet
(strong alnico magnet is
recommended), air core solenoid
or a long wire coiled into many
loops, connecting wires,
galvanometer (–500 µA – 0 – +500
µA recommended), hand-held
generator (Genecon® or
equivalent), access to a second
hand-held generator
Download
Student Worksheet
Teacher Notes
Return to Lab Menu
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Coil wire |
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