Register to reply

Earth magnetism and its application

by Rishav sapahi
Tags: application, earth, magnetism
Share this thread:
Rishav sapahi
#1
Dec25-12, 11:44 AM
P: 12
if magnetic field induce current then why satelites or space ship doesn't gets electrified due to earth magnetism
Phys.Org News Partner Physics news on Phys.org
Scientists uncover clues to role of magnetism in iron-based superconductors
Researchers find first direct evidence of 'spin symmetry' in atoms
X-ray laser probes tiny quantum tornadoes in superfluid droplets
MPKU
#2
Dec25-12, 11:50 AM
P: 50
A magnetic field doesn't always have a voltage associated with it. Voltage can be generated by a changing magnetic field, or when the potential between two areas are high enough (e.g. lightning). However, this does not normally occur naturally.
Drakkith
#3
Dec25-12, 09:56 PM
Mentor
Drakkith's Avatar
P: 11,838
The field is extremely weak and the coils needed to generate appreciable current would probably be horribly large and heavy. Plus it would create current by stealing orbital energy from the satellites, and they would slowly fall from orbit.

Bobbywhy
#4
Dec25-12, 10:47 PM
PF Gold
P: 1,894
Earth magnetism and its application

You may want to read about these:

http://en.wikipedia.org/wiki/Electrodynamic_tether

Cheers,
Bobbywhy


Register to reply

Related Discussions
Earth Mass Increasing? Photons and Photosynthesis making more matter on earth? General Physics 33
Lightning connected with the magnetism of Earth core? Earth 33
Earth's magnetism and Sun's temperature Astronomy & Astrophysics 1
Is the earth's magnetism decreasing? General Physics 3