How are we able to direct narrow bands of magnetic fields like utility lines if Earth’s magnetic field emanates outward from the core towards the atmosphere?

Question

If Earth’s magnetic field emanates from the interior of the earth outward, and magnetosphere is large enough and strong enough to deflect electrified particles thrown by solar flares, how are we able to direct narrow bands of magnetic fields while living within a giant magnetic field? E.g. transfer electricity along utility lines by directing magnetic fields around the wires?

In: 3

Answer 1

The magnetosphere is strong because it is huge. It can deflect particles by nudging at them constantly over a distance of several earth diameters. It won’t nudge the electrons out of our puny wires that span a tiny fraction of the planet’s surface at most.