Massachusetts Institute of Technology
Sign in Create Account

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 6 years by Anonymous User

You need to log in, in order to post comments. If you don’t have an account yet, sign up now!

MIT Department of Physics Technical Services Group

MIT Department of Physics Technical Services Group

Category: Science | Updated almost 2 years ago

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


Viewed
49510 times

More from MIT Department of Physics Technical Services Group

Pulling a Cloth From Under a Beaker

Pulling a Cloth From Under a Beaker

Added 4 years ago | 00:00:50 | 16332 views

Bell Labs Wave Machine: Standing Waves

Bell Labs Wave Machine: Standing Waves

Added 4 years ago | 00:01:16 | 15611 views

Double Pendulum

Double Pendulum

Added over 4 years ago | 00:02:29 | 28664 views

Strobe of a Falling Ball

Strobe of a Falling Ball

Added over 6 years ago | 00:00:41 | 39215 views

Soap Film Oscillation

Soap Film Oscillation

Added over 5 years ago | 00:04:27 | 46270 views

Moving Sand Cart Over a Rotating Surface

Moving Sand Cart Over a Rotating Su...

Added over 5 years ago | 00:01:13 | 34081 views