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Project #264, Alarm vibrator w/ led, Project #265 – Elenco Electronics 202 User Manual

Page 113: Alarm vibrator w/ led (ii)

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Project #264

OBJECTIVE: To show how electricity can move things using
magnetism.

Alarm Vibrator w/ LED

Take a paper clip and straighten it out, bend it in
half, and place it into the electromagnet (M3)
center. Turn on the slide switch (S1), and the
paper clip should vibrate and LED (D1) flashes.

Now push the press switch (S2), the paper clip is
sucked up by the electromagnet and a siren
alarm sounds.

Drop in

Straighten and

bend paper clip

Project #265

OBJECTIVE: To show how electricity can move things using
magnetism.

Alarm Vibrator w/ LED (II)

Take a paper clip and straighten it out, bend it in
half, and place it into the electromagnet (M3)
center. Turn on the slide switch (S1), and the
paper clip should vibrate.

Now push the press switch (S2), the paper clip is
sucked up by the electromagnet and the LED
(D1) flashes.

Drop in

Straighten and

bend paper clip