Here is some very fundamental things troubling me. It follows...... How we can cancel (1) the magnetic field produced by a magnet(so that there will be no magnetic field) (2)the electric field produced by a charge (so that there will be no electric field) Does same numbers of positive and negative charges cancel the field of each other in such a way that we have no electric field at all? Sounds silly but atoms are electrically neutral that way. If it is not that way then what is the definition of electrically neutrality? Is it not about having no net electric field? In the same way, how two electrons in the same orbital having opposite spin cancel out the magnetic field of each other? please explain in simple and basic terms (m An O level student) .