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A Proton Beam That Carries a Total Current of 1

Question 27

Multiple Choice

A proton beam that carries a total current of 1.3 mA has 10.0 mm diameter.The current density in the proton beam increases linearly with distance from the center.This is expressed mathematically as J(r) = J0 (r/R) ,where R is the radius of the beam and J0 is the current density at the edge.Determine the value of J0.


A) 25 A/ A proton beam that carries a total current of 1.3 mA has 10.0 mm diameter.The current density in the proton beam increases linearly with distance from the center.This is expressed mathematically as J(r) = J<sub>0</sub> (r/R) ,where R is the radius of the beam and J<sub>0</sub> is the current density at the edge.Determine the value of J<sub>0</sub>. A) 25 A/ B) 6.2 A/ C) 12 A/ D) 17 A/
B) 6.2 A/ A proton beam that carries a total current of 1.3 mA has 10.0 mm diameter.The current density in the proton beam increases linearly with distance from the center.This is expressed mathematically as J(r) = J<sub>0</sub> (r/R) ,where R is the radius of the beam and J<sub>0</sub> is the current density at the edge.Determine the value of J<sub>0</sub>. A) 25 A/ B) 6.2 A/ C) 12 A/ D) 17 A/
C) 12 A/ A proton beam that carries a total current of 1.3 mA has 10.0 mm diameter.The current density in the proton beam increases linearly with distance from the center.This is expressed mathematically as J(r) = J<sub>0</sub> (r/R) ,where R is the radius of the beam and J<sub>0</sub> is the current density at the edge.Determine the value of J<sub>0</sub>. A) 25 A/ B) 6.2 A/ C) 12 A/ D) 17 A/
D) 17 A/ A proton beam that carries a total current of 1.3 mA has 10.0 mm diameter.The current density in the proton beam increases linearly with distance from the center.This is expressed mathematically as J(r) = J<sub>0</sub> (r/R) ,where R is the radius of the beam and J<sub>0</sub> is the current density at the edge.Determine the value of J<sub>0</sub>. A) 25 A/ B) 6.2 A/ C) 12 A/ D) 17 A/

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