Kirchhoff's Laws & Measuring Instruments question from JEE Main 2022 (25 Jun, Shift 1)

Answer: 2

1. The upper arc joins the cell's top terminal to both upper $5\ \Omega$ ends; the lower arc joins the $2.5\ \Omega$ and the right $5\ \Omega$ to the other terminal.
2. Star path: $(5 \parallel 5) + 2.5 = 2.5 + 2.5 = 5\ \Omega$.
3. In parallel with the right $5\ \Omega$: $R_{eq} = 2.5\ \Omega$.
4. $I = \frac{5}{2.5} = 2$ A
5. So the answer is 2 A.