Instructions

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WARNING: SHOCK HAZARD -

Never connect Snap Circuits

o the electrical outlets in your

home in any way!

ARNING: Always check your wiring before

turning on a circuit. Never leave a circuit

unattended while the batteries are installed.

ever connect additional batteries or any other

ower sources to your circuits.

Electromagnetism

Model SCP-08

753153

Project #1

Magnets & Electronic Magnets

Build the circuit shown. Place the iron core rod inside the

electromagnet (M3), and install three (3) “AA” alkaline

batteries (not included) into the battery holder (B3).

Hold the electromagnet near something made of iron and

push the switch (S2). While pressed, the electromagnet will

attract small iron parts like nails or will stick to a hammer or

refrigerator. Release the switch and the attraction disappears.

Pressing the switch turns on an electric current

which transforms the electromagnet from an

ordinary coil of copper wire into a magnet.

Notice that the magnet will attract

small iron parts and stick to things

like the electromagnet did.

An electric current

flowing in a wire has a

tiny magnetic field. By

looping a long wire into a

coil the tiny magnetic

field is concentrated into

a large one.

The strength of the

magnetic field depends

on how much current is

flowing in the wire and

how many loops of wire.

An electronic magnet is

better than an ordinary

magnet because you

can turn it on or off with

a switch.

Large electromagnets

are used to move

things around at

factories and junkyards.

All materials have tiny particles with magnetic charges, which are usually so

well balanced that you do not notice them unless a magnetic field disturbs them.

Magnets are materials that concentrate their magnetic charges at opposite

ends. One side attracts while the other repels, but the overall material is neutral.

The earth we live on is a giant magnet, due to its iron core. A compass needle

always points north because it is attracted to the earth’s magnetic field.

Summary of content (4 pages)

PAGE 1
WARNING: Always check your wiring before turning on a circuit. Never leave a circuit unattended while the batteries are installed. Never connect additional batteries or any other power sources to your circuits. Electromagnetism Model SCP-08 WARNING: SHOCK HAZARD Never connect Snap Circuits® to the electrical outlets in your home in any way! Project #1 Magnets & Electronic Magnets Build the circuit shown.
PAGE 2
Project #2 Magnetic Fields Note: the compass needle may point opposite to how it’s shown here, depending on how you connected the jumper wires. 1 1. The magnetic field is an area around a magnet where it can affect other objects. It is strongest at the ends of the magnet. Use the circuit from the preceding project to compare the magnetic fields of the electromagnet and magnet. Hold your compass next to the electromagnet and push the press switch (S2).
PAGE 3
Project #3 Electromagnet Tower Build the circuit as shown and drop the thin rod into the electromagnet (M3). Push the press switch (S2) several times. The thin rod gets sucked into the electromagnet and can be suspended there, or you can bounce it up and down. When you push the press switch, the thin rod gets sucked up and wiggles up and down until settling in position just below center. Measure how high Project #4 Be a Magician Part A: Secure the magnet in place with nothing beneath it.
PAGE 4
OTHER SNAP CIRCUITS® PRODUCTS! Contact Elenco® to find out where you can purchase these products. Snap Circuits® Jr. Model SC-100 Build over 100 projects, contains over 30 parts. PARTS LIST Qty. r1 r1 r1 r1 Snap Circuits® Model SC-300 Build over 300 projects, contains over 60 parts.