Question

what is a solenoid?​

Answer 1

A solenoid is a coil wound into a tightly packed helix. The term was invented in 1823 by André-Marie Ampère to designate a helical coil. As a technical term in the study of electromagnetism, a solenoid is a coil that is "pipe-like" in the sense that its length is substantially greater than its diameter.

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Answer 2

A solenoid is a long wire consisting of large number of turns on it.............