why is the field lines of a bar magnet and solenoid same while on the other hand solenoid and circular loops is different?

Asked by Antara Keshav | 21st Jul, 2010, 12:00: AM

Expert Answer:

Circular loops of wire carrying electric current have magnetic field lines, that circle the circumference and prependicular to the plane to the loop. But when we have such circular loops forming into a solenoid then the magnetic field lines submerge and the solenoid produces the same mangetic field lines as of a bar magnet.
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Answered by  | 22nd Jul, 2010, 11:53: AM

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