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Electric Light & Switch

Succeded by

DC Motor & Switch

Project No.

1

New Pieces

2, 3, B1, L1, S1

Manual Included

1-101

Obective

To show how electricity is turned “ON” or “OFF” with a switch.

Description

Build the circuit shown on the left by placing all the parts with a black 1 next to them on the base grid first. Then, assemble parts marked with a 2. Install two (2) “AA” batteries (not included) into the battery holder (B1) and screw the bulb into the lamp socket (L1) if you have not done so already. When you close the slide switch (S1), current flows from the batteries through the lamp and back to the battery through the switch. The closed switch completes the circuit. In electronics this is called a closed circuit. When the slide switch is opened, the current can no longer flow back to the battery, so the lamp goes out. In electronics this is called an open circuit.

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