User:Durga priya chikkala
Derivation of galvanometer to voltmeter:- V=I(R+G), V=ig(R+G), V/ig=R+G, R=V/ig-G, [V=igG], [V/G=ig], R=(V×G/Vg)-G, R=VG/Vg-G, Threrefore, R=G[V/Vg-1].
Derivation of galvanometer to voltmeter:- V=I(R+G), V=ig(R+G), V/ig=R+G, R=V/ig-G, [V=igG], [V/G=ig], R=(V×G/Vg)-G, R=VG/Vg-G, Threrefore, R=G[V/Vg-1].