The value of R in the above circuit to make the galvanometer measure 2A is
Given: Ig = 50mA = 0.05A, I to be measured = 2A, r = 2Ω, Is = I - Ig = 2 - 0.05 = 1.95A
Shunt(R) = IgIs x r
R = 0.051.95 x 10 = 0.2564Ω
