5K10.30 Induction with Coils and Battery

Changing current in one coil induces EMF in other coil. Tap switch and observe meter deflection. Use a core to increase coupling. Version in photo no longer available. Transformer for Crookes tube uses changing DC to produce high voltage.

Picture: Need new photo

Setup Requirements: Assembled as needed. Attach one coil to a galvanometer, another to a battery and switch.

Equations: Emf = - N df /dt.  f = B^.A .   

Safety Issues: None