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Question Number 62534 by peter frank last updated on 22/Jun/19

Answered by tanmay last updated on 22/Jun/19

bi metal changed to a shape concave..    as   ⌣ and touch upper . point to activate  A ...so A is cooler  and B is heater...i think so

bimetalchangedtoashapeconcave..asandtouchupper.pointtoactivateA...soAiscoolerandBisheater...ithinkso

Commented by peter frank last updated on 24/Jun/19

thank you

thankyou

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