The bimetallic switch

Article no. P1352400 | Type: Experiments

grades 7-10
Pupils
medium

Also part of:

Student set Electricity / Electronics 1, TESS advanced Physics

Article no. 15281-88 | Type: Set

Delivery time: 1-2 weeks

Principle

A bi-metal strip comprises two metal strips which are laminated together and have different thermal expansion coefficients. When warmed the strip flexes toward the side with the lower expansion coefficient. In so doing, it can act as a switch in the electric circuit.

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