Electric Bell
To make a simple Electric Bell at home. Students can build this Bell as a science project. Components: 1)Small motor.2)Small Bolt.3)Small Switch.4)Battery.5)Wires.6)Old Bicycle Bell.7)Long Bolt with Nut. Designing: Step 1: Fix the Bell to the Card board with the help of long bolt nut.Step 2...By: vicky selva
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