When copper wire is wrapped around an iron rod and connected to a battery, it becomes an electromagnet. A science teaching material movie that explains the principle and structure of electric bells and telephones by applying the principle of an electromagnet through a fusion of live action and animation.
Stream, buy or rent this movie from the providers below.
Stream | |
---|---|
Not available |
Buy | |
---|---|
Not available |
Rent | |
---|---|
Not available |