KCET 2024 Physics Solved Paper

In an experiment to determine the temperature coefficient of resistance of a conductor a coil of wire X is immersed in a liquid. It is heated by an external agent. A meter bridge set up is used to determine resistance of the coil X at different temperatures.The balancing points measured at temperature t1=0∘C and t2=100∘C are 50 cm and 60 cm respectively. If the standard resistance taken out is S=4Ω in both trials, the temperature coefficient of the coil is