Induction coil, SE

For investigating the magnetic field and its field lines around a current-carrying coil, the effect of the coil current on the field direction, and the relationship between current strength and the angle of deflection at a coil. Copper wire is wound on a transparent former. Coil diameter 80 mm; 144 turns; wire diameter 0.45 mm; dimensions 92 x 24 x 125 mm. A grid plate P3912-1R and a pocket compass P3410-5M are recommended.