Kirchhoff's Laws & Measuring Instruments question from JEE Main 2024 (1 Feb, Shift 1)

Answer: (d)

1. All 8 cells aid each other: $E = 8 \times 5 = 40\text{ V}$, $r = 8 \times 0.2 = 1.6\ \Omega$.
2. $I = \dfrac{40}{1.6} = 25\text{ A}$
3. The voltmeter reads the terminal voltage of one cell: $V = E - Ir = 5 - 25 \times 0.2 = 0$
4. So the answer is (d) $0\text{ V}$.