PHYS208 PHYS208 4/13 Class

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Applications of Ampere's Law

[Ampere's law]

Introduction to Group Project

The Solenoid

A solenoid is generally a tightly-wound helical coil of wire, with a length much greater than its diameter. Working on pictures; text to come...

[solenoid]

[solenoid]

[solenoid]

[solenoid close-up]
Individual contributions to B of a solenoid.

[solenoid B field]
Symmetry of B in a long solenoid.

[solenoid amperian loop]
Choice of amperian loop for determining B of a long solenoid.

[short solenoid]
Magnetic field lines for a short solenoid.
Adpated from HRW, Fig. 30-19


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Last updated April 13, 1998.
Copyright George Watson, Univ. of Delaware, 1997.