Question

An aluminum spherical ball of radius 4.5 cm has a charge of 4.5 µC. A copper spherical shell, concentric with the aluminum ball, has an inner radius of 6.25 cm, an outer radius of 8.5 cm, and a total charge of -11 µC. Because the only non-zero component of the electric field is radially directed, the electric field may be expressed as \(\vec{E} = E \hat{r}\). - Part (a) ? What is the radial component of the electric field, in newtons per coulomb, at a distance of 1.5 cm from the center of the aluminum spherical ball? E=0.000 N/C Correct! Part (b) What is the radial component of the electric field, in newtons per coulomb, at a distance of 5.4 cm from the center of the aluminum spherical ball? E- X Attempts Remain Part (c) ? What is the radial component of the electric field, in newtons per coulomb, at a distance of 7.4 cm from the center of the aluminum spherical ball? E = 0.000 N/C ? Correct! Part (d) What is the radial component of the electric field, in newtons per coulomb, at a distance of 10.4 cm from the center of the aluminum spherical ball? E- X Attempts Remain Part (e) How much charge, in microcoulombs, is on the inner surface of the spherical copper shell? q X Attempts Remain Part (f) How much charge, in microcoulombs, is on the outer surface of the spherical copper shell? q= \(\mu C\) Grade Summary Deductions 0% Potential 100%

          An aluminum spherical ball of radius 4.5 cm has a charge of 4.5 µC. A copper spherical shell, concentric with the aluminum ball, has an inner radius of 6.25 cm, an outer radius of 8.5 cm, and a total charge of -11 µC. Because the only non-zero component of the electric field is radially directed, the electric field may be expressed as \(\vec{E} = E \hat{r}\). - Part (a) ? What is the radial component of the electric field, in newtons per coulomb, at a distance of 1.5 cm from the center of the aluminum spherical ball? E=0.000 N/C Correct! Part (b) What is the radial component of the electric field, in newtons per coulomb, at a distance of 5.4 cm from the center of the aluminum spherical ball? E- X Attempts Remain Part (c) ? What is the radial component of the electric field, in newtons per coulomb, at a distance of 7.4 cm from the center of the aluminum spherical ball? E = 0.000 N/C ? Correct! Part (d) What is the radial component of the electric field, in newtons per coulomb, at a distance of 10.4 cm from the center of the aluminum spherical ball? E- X Attempts Remain Part (e) How much charge, in microcoulombs, is on the inner surface of the spherical copper shell? q X Attempts Remain Part (f) How much charge, in microcoulombs, is on the outer surface of the spherical copper shell? q= \(\mu C\) Grade Summary Deductions 0% Potential 100%

An aluminum spherical ball of radius 4.5 cm has a charge of 4.5 µC. A copper spherical shell, concentric with the aluminum ball, has an inner radius of 6.25 cm, an outer radius of 8.5 cm, and a total charge of -11 µC. Because the only non-zero component of the electric field is radially directed, the electric field may be expressed as E⃗ = E r̂. - Part (a) ? What is the radial component of the electric field, in newtons per coulomb, at a distance of 1.5 cm from the center of the aluminum spherical ball? E=0.000 N/C Correct! Part (b) What is the radial component of the electric field, in newtons per coulomb, at a distance of 5.4 cm from the center of the aluminum spherical ball? E- X Attempts Remain Part (c) ? What is the radial component of the electric field, in newtons per coulomb, at a distance of 7.4 cm from the center of the aluminum spherical ball? E = 0.000 N/C ? Correct! Part (d) What is the radial component of the electric field, in newtons per coulomb, at a distance of 10.4 cm from the center of the aluminum spherical ball? E- X Attempts Remain Part (e) How much charge, in microcoulombs, is on the inner surface of the spherical copper shell? q X Attempts Remain Part (f) How much charge, in microcoulombs, is on the outer surface of the spherical copper shell? q= μ C Grade Summary Deductions 0% Potential 100%

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