Consider a cross-section of an electromagnet having an air-gap of 5 cm as shown in the figure. It consists of a magnetic material (= 20000,) and is driven by a coil having NI = 10 A, where N is the number of turns and I is the current in Ampere. = 20000 3cm 3cm Air gap 3cm 3cm 3 cm -9 cm- 17 cm 5cm Ignoring the fringe fields, the magnitude of the magnetic field B (in Tesla, rounded off to two decimal places) in the air-gap between the magnetic poles is