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electromagnetism

Posted: Sat Jan 20, 2018 6:52 am
by Manasa
Do electric and magnetic fields always exist together ? if so, why ?
Won't electric or magnetic field act alone ?

Re: electromagnetism

Posted: Sat Jan 20, 2018 5:00 pm
by jremington
Electric and magnetic fields are different aspects of the same phenomenon (electromagnetism). You can have a static electric field produced by fixed charges, but magnetism is observed as a result of moving charges, and changing magnetic fields induce electric currents.