TS EAMCET 5 May 2018 Shift 2 Solved Paper

A 500 Ω resistor connected to an external battery is placedinside a thermally insulated cylinder fitted with a frictionless piston. The cylinder contains an ideal gas. A current i of200mA flows through the resistor as shown in the figure. Themass of the piston is 10kg. Assuming g=10m∕s2, the speed at which the piston will move upward, due to heat dissipated by the resistor, so that the temperature of the gas remains unchanged is