A cast steel magnetic circuit (magnetisation curve Figure 14.22) has a uniform cross-section with area 1.5×10 –5 m 2 and a magnetic fux path length of 0.5 m. What current is required in a 200 turn...

A cast steel magnetic circuit (magnetisation curve Figure 14.22) has a uniform cross-section with area 1.5×10^–5
m²
and a magnetic fux path length of 0.5 m. What current is required in a 200 turn coil wrapped round the core to give a core magnetic fux of 12 μWb?