Massachusetts Institute of Technology
Sign in

MIT Physics Demo -- Inductor Radio

One wire coil is connected to a radio, and another is connected to a speaker. The two coils are not connected to each other. The radio signal is transmitted through the induced magnetic field caused by the current in the wires. The signal is only received when there is a magnetic flux through the receiving coil, and thus no sound is heard when the coils are perpendicular to each other.

Comments (2)

This demonstrates clearly that the electric and the magnetic fields are perpendicular to each other in two spatial dimensions

Posted 8 years by Anonymous User

hi.. i presented this in our electromagnetics class.. and i answered everything well til my prof asked me how the gap between the solenoid coils relate to the magnetic flux..

hi.. i presented this in our electromagnetics class.. and i answered everything well til my prof asked me how the gap between the solenoid coils relate to the magnetic flux..can anybody help me answer this please?

hi.. i presented this in our electromagnetics class.. and i answered everything well til my prof asked me how the gap between the solenoid coils relate to the magnetic flux..can anybody help me answer this please?what equation or relationship relates the gap to the magnetic flux? so i could answer why the volume increases as the gap decreases..

Posted over 7 years by Anonymous

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 6 years ago

Created
April 10, 2008 14:45
Category
Tags
License
Creative Commons Attribution-NonCommercial (What is this?)
Additional Files


Viewed
36857 times

More from MIT Department of Physics Technical Services Group

Physics Demo -- Lenz's Law

Physics Demo -- Lenz's Law

Added over 8 years ago | 00:00:28 | 53547 views

MIT Physics Demo -- Microwave Polarization

MIT Physics Demo -- Microwave Polar...

Added over 8 years ago | 00:01:14 | 37708 views

MIT Physics Demo -- Telegraph Transmitter

MIT Physics Demo -- Telegraph Trans...

Added over 8 years ago | 00:00:36 | 54422 views

Cloud Chamber

Cloud Chamber

Added over 7 years ago | 00:02:36 | 92478 views

Orbital Motion

Orbital Motion

Added over 7 years ago | 00:03:00 | 46508 views

MIT Physics Demo -- Jacob's Ladder and the Melting Nail

MIT Physics Demo -- Jacob's Ladder ...

Added over 8 years ago | 00:01:26 | 57935 views