A galvanometer has a coil of resistance $100\Omega$ and gives a full scale deflection for 30 mA current. If it is to work as a voltmeter of 30 volt range, the resistance required to be added will be –

Question

( A ) $900\Omega$
( B ) $1000\Omega$
( C ) $500 \Omega$
( D ) $1800\Omega$