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A coil of wire wrapped around a cylinder is called a solenoid.
Note:The coils in a solenoid are generally more tightly coiled than this diagram may suggest. When a current passes through a solenoid, the lines of magnetic flux through the middle of the solenoid are parallel to the axis, so the magnetic field is uniform. The lines outside the solenoid are similar to those of a bar magnet. Its ends behave like the poles of a bar magnet. You have now completed this exercise. Before you quit the package, return to the title page and check that the learning outcomes have been achieved. |
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Click on the
solenoid to see the magnetic field produced by current flow through the solenoid.
