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Assume that a stationary electron is a point of charge. What is the energy density u of its electric field at radial distances (a) r = 7.70 mm, (b) r = 7.70 μm, (c) r = 7.70 nm, and (d) r = 7.70 pm? (e) What is u in the limit as r → 0? (Select option "1" if u → 0 or option "2" if u → ∞o.) (a) Number i 4.10E-4 (b) Number i 4.10E3 (c) Number i 4.10E12 (d) Number i 4.10E21 Units Units Units Units J/m^3 J/m^3 J/m^3 J/m^3

Assume that a stationary electron is a point of charge. What is the energy density u of its electric field at radial distances (a) r = 7.70 mm, (b) r = 7.70 μm, (c) r = 7.70 nm, and (d) r = 7.70 pm? (e) What is u in the limit as r → 0? (Select option "1" if u → 0 or option "2" if u → ∞o.) (a) Number i 4.10E-4 (b) Number i 4.10E3 (c) Number i 4.10E12 (d) Number i 4.10E21 Units Units Units Units J/m^3 J/m^3 J/m^3 J/m^3

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Assume that a stationary electron is a point of charge. What is the energy density u of its electric field at radial distances (a) r = 7.70 mm, (b) r = 7.70 μm, (c) r = 7.70 nm, and (d) r = 7.70 pm? (e) What is u in the limit as r → 0? (Select option "1" if u → 0 or option "2" if u → ∞o.) (a) Number (b) Number Mi 4.10E-4 4.10E3 (c) Number i 4.10E12 (d) Number i 4.10E21 Units Units J/m^3 J/m^3 Units J/m^3 Units J/m^3 <
Transcribed Image Text:Assume that a stationary electron is a point of charge. What is the energy density u of its electric field at radial distances (a) r = 7.70 mm, (b) r = 7.70 μm, (c) r = 7.70 nm, and (d) r = 7.70 pm? (e) What is u in the limit as r → 0? (Select option "1" if u → 0 or option "2" if u → ∞o.) (a) Number (b) Number Mi 4.10E-4 4.10E3 (c) Number i 4.10E12 (d) Number i 4.10E21 Units Units J/m^3 J/m^3 Units J/m^3 Units J/m^3 <
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