JEE Main 28 June 2022 Shift 1 Solved Paper

A meter bridge setup is shown in the figure. It is used to determine an unknown resistance R using a given resistor of 15Ω. The galvanometer (G) shows null deflection when tapping key is at 43‌cm mark from end A. If the end correction for end A is 2‌cm, then the determined value of R will be _____Ω.