JEE MAIN - Physics (2025 - 24th January Evening Shift - No. 6)
The magnitude of heat exchanged by a system for the given cyclic process ABCA (as shown in figure) is (in SI unit) :
_24th_January_Evening_Shift_en_6_1.png)
zero
40$\pi$
5$\pi$
10$\pi$
Explanation
_24th_January_Evening_Shift_en_6_2.png)
$$\begin{aligned} & \mathrm{W}=\frac{1}{2} \pi \mathrm{R}^2 \\ & =\frac{1}{2} \times \pi \times\left(\frac{200}{2} \times 10^3\right) \times \frac{200}{2} \times 10^{-6} \\ & =\frac{10 \pi}{2}=5 \pi \mathrm{~J} \end{aligned}$$
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