A bimetallic strip consists of metals A and B | vedclass

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(B) The coefficient of linear expansion is denoted by $\alpha$. Given that $\alpha_A > \alpha_B$.When the temperature decreases (placed in a cold bath

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bend towards the left

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(B) The coefficient of linear expansion is denoted by $\alpha$. Given that $\alpha_A > \alpha_B$.When the temperature decreases (placed in a cold bath),the change in length is given by $\Delta L = L_0 \alpha \Delta T$,where $\Delta T$ is negative.Since $\alpha_A > \alpha_B$,the magnitude of contraction in metal $A$ is greater than that in metal $B$ $(|\Delta L_A| > |\Delta L_B|)$.Because metal $A$ is on the left and it contracts more than metal $B$,the strip will bend towards the left side (the side of the metal that contracts more).

$A$ bimetallic strip consists of metals $A$ and $B$. It is mounted rigidly at the base as shown. The metal $A$ has a higher coefficient of expansion compared to that of metal $B$. When the bimetallic strip is placed in a cold bath,it will:

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