MCQ
The graph which represents the relation between the total resistance $R$ of a multi range moving coil voltmeter and its full scale deflection $V$ is
- A(i) (iii)
- B(ii) (iv)
- C(iii)
- ✓(iv)
✓
Answer
Correct option: D.
(iv)
(d) For conversion of a galvanometer into a voltmeter$\begin{aligned}& \frac{V}{R+G}=i_g \Rightarrow \frac{V}{R_V}=i_g ; \text { where } R_v=R+G=\text { Total resistance } \\& \Rightarrow R_V=\frac{V}{i_g} \Rightarrow R_V \propto V\end{aligned}$
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