# Question 1. A magnetic circuit of a plunger is shown below. Calculate the force acting on the plunger when the distance r = 2 cm and the current in the 100 - turn coil is 5 A. The relative permeability of the magnetic material is 2000. Assume that the bushing is nonmagnetic. 13 13 15 A 200 turns Thickness - 2 cm 0.5 21 Moving part 10.5 Nonmagnetic bushing 10 -21, 21-10 (All dimensions in centimeters)

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Transcribed Image Text: 1. A magnetic circuit of a plunger is shown below. Calculate the force acting on the plunger when the distance r = 2 cm and the current in the 100 - turn coil is 5 A. The relative permeability of the magnetic material is 2000. Assume that the bushing is nonmagnetic. 13 13 15 A 200 turns Thickness - 2 cm 0.5 21 Moving part 10.5 Nonmagnetic bushing 10 -21, 21-10 (All dimensions in centimeters)
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Transcribed Image Text: 1. A magnetic circuit of a plunger is shown below. Calculate the force acting on the plunger when the distance r = 2 cm and the current in the 100 - turn coil is 5 A. The relative permeability of the magnetic material is 2000. Assume that the bushing is nonmagnetic. 13 13 15 A 200 turns Thickness - 2 cm 0.5 21 Moving part 10.5 Nonmagnetic bushing 10 -21, 21-10 (All dimensions in centimeters)