A bimetallic strip consists of metals A and B | vedclass

Name: Exam Paper Generator | JEE NEET Paper Generator | Vedclass
Brand: Vedclass
Rating: 5 (35 reviews)

Question

(D) The change in length of a metal strip is given by $\Delta L = L \alpha \Delta T$,where $\alpha$ is the coefficient of linear expansion and $\Delta

Vedclass · Accepted Answer

Bend towards the left

Vedclass · Answer

(D) The change in length of a metal strip is given by $\Delta L = L \alpha \Delta T$,where $\alpha$ is the coefficient of linear expansion and $\Delta T$ is the change in temperature.Since the strip is placed in a cold bath,the temperature decreases,so $\Delta T$ is negative,meaning both metals will contract.Given that $\alpha_{A} > \alpha_{B}$,the contraction in metal $A$ will be greater than the contraction in metal $B$ (i.e.,$|\Delta L_{A}| > |\Delta L_{B}|$).Since metal $A$ is on the left and it contracts more than metal $B$,the strip will bend towards the side that contracts more,which is the left side.

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

Similar Questions

When the temperature of a metal wire is increased from $0^{\circ} \,C$ to $10^{\circ} \,C$,its length increases by $0.02 \%$. The percentage change in its mass density will be closest to: (in $\%$)

$A$ steel scale measures the length of a copper wire as $80.0\,cm$ when both are at $20^\circ C$ (the calibration temperature for the scale). What would be the scale reading for the length of the wire when both are at $40^\circ C$ (in $,cm$)?

When a body is heated, then the maximum rise will be in its

When a bimetallic strip is heated, it . . . . . . .

Vedclass Test Series

Exam Paper Generator

Online Exam Module