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38
Magnetism from
electricity
YOU WILL NEED
→ wire
→ compass
→ 1.5-volt battery
→ scissors
→ tape
→ sheet of letter-size paper
HERE'S HOW
1. Place the compass on the paper and
wait for the needle to orient itself.
2. Guide the wire across the compass in
such a way that it runs parallel to the
needle. Secure it in this position with
tape.
3. Hold the ends of the wire by their plastic
insulation and briefly touch their
exposed parts to the battery contacts.
Watch the compass needle as you do
this.
CAUTION!
Only connect the wire to the
battery very briefly, for just about one second. The
powerful current will heat up the wire and the battery.
You could burn yourself with the hot wire, and the
battery could get damaged by the heat or quickly
run out.
EXPERIMENT 26
1
2
3
1.5 V
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