eli5 Why Earth magnetic field doesnot affect electric appliances especially at poles where field is greatest

Question

eli5 Why Earth magnetic field doesnot affect electric appliances especially at poles where field is greatest

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Answer 1

Magnetic fields doesn’t really affect most electric devices very much.

*Changes* in an electric field is what affects electric devices since a sudden change in the magnetic field can make electrons start to move around inside the electric device.

The earths magnetic field isn’t changing much at all, that’s why we can use it to navigate, so it doesn’t bother electric stuff much.