Electromagnets.

Duration: 11 min.

Year Published: 1949

Format: 16mm

Color: B&W

Sound: sound

Description: Explains the principle of the electromagnet and points out how it is used in doorbells, telephones, and electric motors. For elementary school science classes.

Complete Record: ELECTROMAGNETS. Young America Films, Inc., c1949. 11 min., sd., b&w, 16mm. Summary: Explains the principle of the electromagnet and points out how it is used in doorbells, telephones, and electric motors. For elementary school science classes. Credits: Adviser, Gerald S. Craig. © Young America Films, Inc.; 30Sep49; MP4559.