$A$ galvanometer may be converted into ammeter or voltmeter. In which of the following cases the resistance of the device will be the largest ? (Asssume maximum range of galvanometer $= 1\, mA$)
Aan ammeter of range $10\,A$
Ba voltmeter of range $5\, V$
Can ammeter of range $5 \,A$
Da voltmeter of range $10\, V.$
Medium
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Da voltmeter of range $10\, V.$
d As shown in figure $1$
$v=I_{g} R_{x}=I \times 10^{-3} \times R_{x}$
As $R_{x}=$ very large voltmeter, $v_{0}$ range will be more.
Maximum voltage may be of range $10 \mathrm{v}$.
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