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which of the following will create a MAGNETIC FIELD? An electron that is slowing down from...

which of the following will create a MAGNETIC FIELD?

An electron that is slowing down from 500 km/h to 400 km/h

A neutron moving in a circle while traveling at a constant speed of 20 m/mm

an ion that is speeding up from 1000 m/s to 1200 m/s

A proton moving at a constant velocity of 60 mph due north

A neutrino that is stationary

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