Physics · 2022
JEE Main · 28 June 2022, Shift 1 · Q52
A meter bridge setup is shown in the figure. It is used to determine an unknown resistance R using a given resistor of 15 Ω. The galvanometer (G)…
A meter bridge setup is shown in the figure. It is used to determine an unknown resistance R using a given resistor of $\displaystyle 15 \Omega$. The galvanometer (G) shows null deflection when tapping key is at $\displaystyle 43$ cm mark from end A . If the end correction for end $\displaystyle A$ is $\displaystyle 2$ cm, then the determined value of $\displaystyle R$ will be \_\_\_\_ $\displaystyle \Omega$.
Official answer
19
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