what is solenoid?explanation
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A solenoid is a device comprised of a coil of wire, the housing and a moveable plunger (armature). When an electrical current is introduced, a magnetic field forms around the coil which draws the plunger in. More simply, a solenoid converts electrical energy into mechanical work.
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Solenoid is the long insulated coil of a copper whose diameter is less than its height.
It is a coil with larger height.
It's magnetic field is similar to that of Bar magnet.
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