4.5.3-4.5.5 · Magnetic effect of a current, forces and the d.c. motorLesson 2 of 11Free preview
Magnetic field of a solenoid
Wind the wire into a coil and the field looks like a bar magnet. More current or more turns make it stronger.
4.5.3-4.5.5 · Magnetic effect of a current, forces and the d.c. motorLesson 2 of 11Free preview
Wind the wire into a coil and the field looks like a bar magnet. More current or more turns make it stronger.