Question

what is solenoid? in easy language definition​

Answer 1

Explanation:

A solenoid is a long coil made up of insulated copper wire  having large number of closed turns. The magnetic field lines around a solenoid are same to that of a bar magnet

Answer 2

Answer:

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solenoid is a coil of wire usually in cylindrical form that when carrying a current acts like a magnet so that a movable core is drawn into the coil when a current flows and that is used especially as a switch or control for a mechanical device (such as a valve)...

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