Massachusetts Institute of Technology
Sign in

Temperature Effect on Resistance

A light bulb is connected in series with a coil of very fine copper wire and a DC power supply. The voltage is adjusted so that the bulb glows dimly. When the coil is immersed in liquid nitrogen the resistance of the wire decreases causing the current to increase and the bulb to glow brightly.

Comments (0)

It looks like no one has posted a comment yet. You can be the first!

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 over 7 years ago

Created
January 21, 2009 14:43
Category
Tags
License
Creative Commons Attribution-NonCommercial (What is this?)
Additional Files


Viewed
49400 times

More from MIT Department of Physics Technical Services Group

Monkey and a Gun

Monkey and a Gun

Added over 9 years ago | 00:01:16 | 77839 views

MIT Physics Demo -- Telegraph Transmitter

MIT Physics Demo -- Telegraph Trans...

Added almost 10 years ago | 00:00:36 | 56259 views

MIT Physics Demo -- Jumping Wire

MIT Physics Demo -- Jumping Wire

Added over 9 years ago | 00:00:37 | 41858 views

Fire Extinguisher on a Tricycle

Fire Extinguisher on a Tricycle

Added over 9 years ago | 00:00:53 | 42293 views

Strobe of a Falling Ball

Strobe of a Falling Ball

Added over 9 years ago | 00:00:41 | 51018 views

MIT Physics Demo -- No-Win Tug of War

MIT Physics Demo -- No-Win Tug of War

Added over 9 years ago | 00:00:33 | 46321 views