A galvanometer having a coil resistance...

A galvanometer having a coil resistance `100 Omega` given full scale deflection when a current of 1mA is passed throught it . What is the value of the resistance which can convert this galvanometer into a voltmeter giving full scale deflection for a potential difference of 10 V ?

`10KOmega`

`8.9 kOmega`

`7.9kOmega`

`9.9kOmega`

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