Three voltmeters, all having different internal resistances are joined as shown in figure. When some potential difference is applied across $\mathrm{A}$ and $B$, their readings are $V_1, V_2$ and $V_3$. Choose the correct option.
JEE MAIN 2024, Diffcult
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From $KVL$,
$v_1+v_2-v_3=0 \Rightarrow \mathrm{V}_1+\mathrm{V}_2=\mathrm{V}_3$
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