
Field and Wave Electromagnetics 2nd Edition by David Cheng
Edition 2ISBN: 978-0201128192
Field and Wave Electromagnetics 2nd Edition by David Cheng
Edition 2ISBN: 978-0201128192 Exercise 35
A current I flows in a long solenoid with n closely wound coil-turns per unit length. The cross-sectional area of its iron core, which has permeability µ. is S. Determine the force acting on the core if it is withdrawn to the position shown in Figure.
Figure: A long solenoid with iron core partially withdrawn

Figure: A long solenoid with iron core partially withdrawn

Explanation
Refer to figure 6-55 in textbook.
Consid...
Field and Wave Electromagnetics 2nd Edition by David Cheng
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