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 5 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!

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


Viewed
48104 times

More from MIT Department of Physics Technical Services Group

Waves on a Chain

Waves on a Chain

Added almost 5 years ago | 00:01:26 | 41702 views

Potential Energy to Kinetic Energy

Potential Energy to Kinetic Energy

Added over 5 years ago | 00:01:11 | 29822 views

Breaking Glass with Sound

Breaking Glass with Sound

Added almost 5 years ago | 00:02:33 | 54998 views

Physics Demo -- Superconductor

Physics Demo -- Superconductor

Added 6 years ago | 00:00:56 | 49965 views

Wooden Block Between Two Strings

Wooden Block Between Two Strings

Added over 3 years ago | 00:01:54 | 15180 views

Hero's Engine

Hero's Engine

Added over 3 years ago | 00:01:38 | 20340 views