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Smoke detector operation
Alpha particles emitted by the americium-241 ionise the air molecules in the chamber. The electrical circuit establishes a current. Smoke particles interfere with the current, and the circuit is designed to set off an alarm when this happens.
Rights: The University of Waikato Te Whare Wānanga o Waikato
Published: 17 September 2009Updated: 17 September 2009Size: 19.49 KB
