1. Limited time only! Sign up for a free 30min personal tutor trial with Chegg Tutors
    Dismiss Notice
Dismiss Notice
Join Physics Forums Today!
The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

Earth`s magnetic field and permanent magnets

  1. Jan 31, 2009 #1
    I was always fascinated by magnets and I never understood, why Earth`s magnetic field doesn`t conspicuously affect permanent magnets. Is it too weak or what?
  2. jcsd
  3. Jan 31, 2009 #2
    A compass with a needle made of lodestone should work just as well as one with a needle made of iron. But if by ''conspicuous" you mean flying through the air, then notice that the north and south poles of a piece of lodestone are so close together compared to the scale of the earth that there is just as much pull towards the north pole as there is a push.
  4. Jan 31, 2009 #3
    But what if you were on the pole? The magnet should attract to the ground but I have not heard about such a case.
Share this great discussion with others via Reddit, Google+, Twitter, or Facebook