In a Certain Particle Accelerator,a Current of 300 $\mu$ A Is Carried by a 4

question 43

Multiple Choice

In a certain particle accelerator,a current of 300 $\mu$ A is carried by a 4.00-MeV proton beam that has a radius of 1.30 mm.The mass of a proton is 1.67 $\times$ 10^-27 kg.If the beam hits a target,how many protons hit the target in 3 s?

• A)1.55 \(\times\) 10¹⁵
• B)8.64 \(\times\) 10¹⁵
• C)3.42 \(\times\) 10¹⁵
• D)4.29 \(\times\) 10¹⁵
• E)None of these is correct.

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