GIVEN by,\(s = \frac{1}{{{I_{FSD}}}}\)Where IFSD is full-scale deflection.Calculation:Given:Full-scale deflection current, \({I_{FSD}} = \frac{1}{s} \)Where, (s) is sensitivity.\(s = \frac{1}{{{I_{FSD}}}}\)\(s = \frac{1}{{50 \TIMES {{10}^{ - 6}}}} = 20k{\rm{\OMEGA }}/V\)