Massachusetts Institute of Technology
Sign in

MIT Physics Demo -- Galvanometer Principle

Two large coils of wire ("Helmoholz coils") are connected to 125V DC power, and produce a uniform magnetic field between the coils. A separate coil is suspended with this field. Switching the polarity of the DC current in the inner coil causes it to rotate in opposite directions.

This principle is used by devices called galvanometers to measure electric current.

Comments (1)

That was cool. Hannah

Posted over 7 years by Anonymous User

You need to log in, in order to post comments.

MIT Department of Physics Technical Services Group

MIT Department of Physics Technical Services Group

Category: Science | Updated almost 6 years ago

Created
July 08, 2008 10:38
Category
Tags
License
Creative Commons Attribution-NonCommercial (What is this?)
Additional Files


Viewed
51660 times

More from MIT Department of Physics Technical Services Group

Rubber and Glass Rods with Tinsel and Balloon

Rubber and Glass Rods with Tinsel a...

Added over 7 years ago | 00:02:02 | 41849 views

MIT Physics Demo -- Bicycle Wheel Gyroscope

MIT Physics Demo -- Bicycle Wheel G...

Added over 7 years ago | 00:01:28 | 176164 views

Physics Demo -- Jumping Ring

Physics Demo -- Jumping Ring

Added 8 years ago | 00:01:40 | 55121 views

MIT Physics Demo -- No-Win Tug of War

MIT Physics Demo -- No-Win Tug of War

Added over 7 years ago | 00:00:33 | 41159 views

Inducing Dipoles with a Van de Graaff Generator

Inducing Dipoles with a Van de Graa...

Added over 7 years ago | 00:02:51 | 50285 views

MIT Physics Demo -- Conducting Glass

MIT Physics Demo -- Conducting Glass

Added almost 8 years ago | 00:01:11 | 54582 views