induction coil
Date: late 19th-early 20th Century
Inventory Number: 0148
Classification: Induction Coil
Collector: Harold C. Ernst ? (1856 - 1922)
Owner: Department of Physics, Harvard University (founded 1884)
Cultural Region:
City of Use:
Dimensions:
6.3 × 18.5 × 13.8 cm (2 1/2 × 7 5/16 × 5 7/16 in.)
Description:
From Instrument Card: "4 turn coil of heavy copper wire mounted on a rectangular wooden base. Designed to have a magnet moved up and down in the center of the coil."
Signedon binding post: MADE IN GERMANY
FunctionTo demonstrate an induced current by a moving magnetic field. For this purpose, the binding posts would probably be connected to a galvanometer. The galvanometer's needle would move as one moves a magnet through the coil.
ProvenanceFrom the Harvard University Physics Department.