Question

In a particle accelerator, a current of 0.5 mA is carried by
a 5 MeV proton beam that has a radius of 1.5 mm. The
number of protons crossing any cross-section of a beam in
1 s is
(1)
1.43 x 1013 protons (2) 3.10 x 1015 protons
(3) 2.48 x 1016 protons (4) 2.5 x 108 protons​

Answer 1

Answer:

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