Elenco Snaptricity&reg - Manual (Page 89)

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!
WARNING: Moving parts. Do not touch
the fan or motor during operation.
!
WARNING: Do not
lean over the motor.
Electromagnetic Playground Project #79
Educational Corner:
Electric Paths
Push the press switch (S2); either the lamps (L4) will light or the
fan will spin, depending on the position of the lower slide switch.
Now, set the top slide switch to position C. When you push the press
switch, the compass needle moves; when you release the switch,
the compass returns to pointing toward the magnet. Hold down the
press switch while moving the magnet closer to and then away from
the compass, and watch how the compass needle points.
The meter always shows the current.
Operation
Build the circuit as shown, set the top slide switch (S5) to position
C, place the fan on the motor (M1), place the iron core rod in the
electromagnet (M3), set the meter (M5) to the 1A scale, and lay
the magnet on the base grid in the spot shown (red side toward
the compass).
Assembly
+
1A
+
N
S
The switches direct the electricity between the lamps, motor, and
electromagnet. When activated, the electromagnet fights with the
magnet for control of the compass needle.
Description
Congratulations,
you’ve finished! 1A