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Elementary principle of bell working

Suitable for grades 3-6

key word:Digital inquiry experiment system

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When energized , the electromagnet has a current passing through it, which generates magnetism, attracts the elastic piece under the small hammer, makes the small hammer hit the electric bell and makes a sound, and at the same time the circuit is disconnected, the electromagnet loses its magnetism, and the small hammer is bounced back. Close and repeat, and the electric bell will make a continuous beating sound.


Understand the basic principles of how electric bells work.

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