Physics
Physics, 27.06.2019 01:30, whohelpme

If the current in a wire increases from 5 a to 10 a, what happens to its magnetic field? if the distance of a charged particle from a wire changes from 10 cm to 20 cm, what happens to its magnetic field? if the charge of a particle changes from 2 µc to –2µc, what happens to the force exerted on that particle?

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