Physics, asked by alizachauhan22, 1 day ago

which allow is used to make law expansion side of birmetallic strip is an automatic fire alarm

Answers

Answered by manjusharma10j

0

Answer:

As iron and brass expands at different rate the expansion of bothe metals causes bimetallic strip to bend. Due to this strip touches the screw which is adjacent to it and thus complete the circuit.

Thus, the automatic bell rings.

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