Video 2| Works even on a vibrating table!Fig.1| Take the steel wire and make a coil of 4-5 turns with a diameter slightly greater than the nut taken.Fig.2| Join the three wood pieces and make the shape as shown in fig with the help of nails and make two holes in the middle and upper wood pieces and pass both the ends of the steel coil through the hole of the middle section and wrap the entire structure with black tape except the end of the steel wire.Fig.3| Coil in the middle of the wood piece.Fig. 4| The other end of the coil taken out from the backside of the hole and brought to the base.Fig. 5| Tie the nut with copper wire not very thick and also not very thin but of moderate thickness so that it could easily swing.Fig. 6| Nut tied with the copper wire side view.Pass the end of the copper wire through the top hole such that the nut hangs in between the steel coil shown in fig.7.Fig. 7| Attach the buzzer with the help of tape anywhere or as shown in the fig. and connect the end of the copper wire to one of the terminals of the buzzer.Fig. 8| Connect the other terminal of the buzzer to a wire which will be connected to the LED. Now solder the joints.Fig. 9| Use small nails for fixing connections.Fig. 10| Connections before soldering.Fig. 11| Connections after soldering is done.Fig. 12| The other end of the buzzer is connected to the +ve terminal of the battery and -ve terminal of the battery is connected to the negative terminal of the battery with a wire.Fig. 13| LED connectionsFig. 14| View of the connections made upto this step.Fig. 15| Fix the LED with the help of tape as shown.Fig. 16| Battery and connector joined.Fig. 17| Connect the slider switch in series with the battery and solder the joints.Fig. 18| Switch after soldering done.Fig. 19| Close view of the final connections.Fig. 20| Final complete view of the model.Fig. 21| Top view of the completed model.Fig. 22| Now Switch on the circuit And shake the board as shown in the video the buzzer will ring and the LED will glow.
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