let say i have a bicycle chain,i chained my bike n lock it and suddenly without me knowing someone cuts the chain to take my bike away.the function is to make my chain with alarm sound out loud,when the chain is cut.so please help me design the circuit for this
Answer:
You can't reliably unless you thread a wire through the chain that is cut at the same time as chain - chain not a good conductor of electricity. You might look at capacitance triggered switches, which would set off the alarm if anyone touched the bike.
Alternately, you might paint the bike lavender with pink triangles so no one in their right mind would steal it.
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