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

In: 1

Answer 1

It does, it’s just a very small effect overall, so small that it can be ignored in most applications. The earth’s magnetic field is huge, but it isn’t overall very strong. A simple fridge magnet is much stronger (though of course much smaller).