I tried to solve this question through the first law Since it is cyclic ∆U over a complete cycle is 0Hence ∆Q=∆W=Area under graph. Now since in first circle process is going clockwise work will be positive, in smaller circle work will be negativeHence w=area of bigger circle-area of smaller circle. On doing this i am getting 3πJ but the answer is 2πJ . Can you pls tell me where i am wrong

Daksh Adhar , 6 Years ago

Grade 11