# A moving coil galvanometer allows a full  scale current of $10^{^{-2}}$ A. A series resistance  of 200$\Omega$ is required to convert the above galvanometer into an voltmeter of range0-5 V . Therefore the value of shunt resistance required to convert the above galvanometer into an ammeter of range0-10 mA is : Option 1) $300\Omega$ Option 2) $100\Omega$ Option 3) $200\Omega$ Option 4) $10\Omega$

Conversion of galvanometer into voltameter -

Connected a large Resistance $R$  in series

- wherein

(R+G) I = V

$(2\times 10^{2}+G)10^{-2}=V=5$

=> $2+10^{-2}G=5$

G=300$\Omega$

Option 1)

$300\Omega$

Option 2)

$100\Omega$

Option 3)

$200\Omega$

Option 4)

$10\Omega$

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