For designing a voltmeter of range 50 V and an ammeter of range 10 mA using a galvanometer which has a coil of resistance 54 Ω showing a full scale…

For designing a voltmeter of range $\displaystyle 50$ V and an ammeter of range $\displaystyle 10$ mA using a galvanometer which has a coil of resistance $\displaystyle 54 \Omega$ showing a full scale deflection for $\displaystyle 1$ mA as in figure.

for voltmeter $\displaystyle R \approx 50 \mathrm{k} \Omega$

for ammeter $\displaystyle \mathrm{r} \approx 0.2 \Omega$

for ammeter $\displaystyle \mathrm{r}=6 \Omega$

for voltmeter $\displaystyle R \approx 5 \mathrm{k} \Omega$

for voltmeter $\displaystyle R \approx 500 \Omega$

Choose the correct answer from the options given below: