A moving coil instrument has the following data,
Number of turns = 100
Width of the coil = 20 mm
Depth of the coil = 30 mm
Flux density in the gap = 0.1 wb/m2
Calculate the deflecting torque when carrying a current of 10 mA and the deflection, if the control spring constant is 2 × 10-6 Nm/degree.1
60 μ Nm, 30°
2
60 μ Nm, 20°
3
50 μ Nm, 30°
4
50 μ Nm, 20°