Elenco Electronics Snap Circuits STEM - Project 33 2 Direction Motor

Project 33
2 Direction Motor
Build the circuit. Set the switcher (S6) to the
middle position (off), set the meter (M5) to the
1A setting, and place the fan on the motor (M1).
Now set the switcher to the top position; the
motor spins, the lamp (L4) lights, and the meter
measures the current. Set the switcher back to
the middle position to turn off the circuit.
The switcher is used to reverse the
battery connections (from snap A &
D) to snaps B & C, which reverses
the voltage across the motor and
lamp. In the top position, battery “+”
is connected to snap B, and in the
bottom position battery “+” is con-
nected to snap C.
Study the circuit. What will happen to the motor, lamp, and meter if
you change the switcher to the bottom position? (Try it.)
1A
!
WARNING: Moving parts. Do not
touch the fan during operation.
!
WARNING:
Do not lean
over the motor.
The switcher’s connections look
like this:
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