File:Picture of a Solenoid.png - Wikimedia Commons

File:Hydraulic circuit schematic directional control.png - Wikipedia

File:Solenoid-domain-examples.png - Wikipedia

File:Solenoid field lines rough.png - Wikimedia Commons

Actuators, Free Full-Text

Solenoid –

File:Smale-Williams Solenoid.png - Wikipedia

File:VFPt Solenoid correct3 Babs.svg - Wikipedia

Magnetic field strength as a function of distance from the centre

File:Solenoid with 3 loops (1).png - Wikimedia Commons

Solenoid - Javatpoint