# Question 5. A magnetic circuit of a plunger is shown in Figure 3. Calculate the force acting on the plunger when the distance r is 2cm and the current in the 100 - turn coil is 5A. The relative permeability of the magnetic material is 2000. Assume that the bushing is non magnetic Bushing Magnetic material 4.-2000 4,1 cm 100 20 cm Airgap cm 10:45 T cm Cross-sectional area of all parts - 5 cm -20 cm

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Transcribed Image Text: 5. A magnetic circuit of a plunger is shown in Figure 3. Calculate the force acting on the plunger when the distance r is 2cm and the current in the 100 - turn coil is 5A. The relative permeability of the magnetic material is 2000. Assume that the bushing is non magnetic Bushing Magnetic material 4.-2000 4,1 cm 100 20 cm Airgap cm 10:45 T cm Cross-sectional area of all parts - 5 cm -20 cm
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Transcribed Image Text: 5. A magnetic circuit of a plunger is shown in Figure 3. Calculate the force acting on the plunger when the distance r is 2cm and the current in the 100 - turn coil is 5A. The relative permeability of the magnetic material is 2000. Assume that the bushing is non magnetic Bushing Magnetic material 4.-2000 4,1 cm 100 20 cm Airgap cm 10:45 T cm Cross-sectional area of all parts - 5 cm -20 cm