Question 33. Three voltmeters, all having different internal resistances are joined as shown in figure. When some potential difference is applied across A and B, their readings are V_{1}, V_{2} and V_{3}. Choose the correct option.
(1) V_{1}=V_{2}
(2) V_{1} \neq V_{3}-V_{2}
(3) V_{1}+V_{2}>V_{3}
(4) V_{1}+V_{2}=V_{3}
Answer (4)
Explanation:
From KVL,
\mathbf{V}_1 + \mathbf{V}_2 - \mathbf{V}_3 = \mathbf{0} \Rightarrow V_1 + V_2 = V_3