Physics - Magnetism Question with Solution | TestHub

A moving coil galvanometer has 50 turns and each turn has an area$2\times {10}^{-4} {\mathrm{m}}^2$. The magnetic field produced by the magnet inside the galvanometer is$0.02 \mathrm{T}$. The torsional constant of the suspension wire is${10}^{-4} \mathrm{N}\mathrm{ }\mathrm{m}\mathrm{ }{\mathrm{rad}}^{-1}$. When a current flows through the galvanometer, a full scale deflection occurs if the coil rotates by$0.2 \mathrm{rad}$. The resistance of the coil of the galvanometer is$50 \mathrm{\Omega }$. This galvanometer is to be converted into an ammeter capable of measuring current in the range$0-1.0 \mathrm{A}$. For this purpose, a shunt resistance is to be added in parallel to the galvanometer. The value of this shunt resistance, in ohms, is __________.