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Problem 2) A multipole shown in the figure is considered in free-space with charge 2q at origin and two charges -q at z=-
d, and z=+d respectively. Find electric potential V(R) and electric field intensity, E, in far field, where |R|>>2d. (
Z
-q
+2q
-q
Y

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Immediately outside a conducting sphere of unknown charge Q and radius R the electric potential is 240 V, and 10.0 cm further from the sphere, the potential is 140 V. (a) Determine the radius R of the sphere (in cm). cm (b) Determine the charge Q on the sphere (in nC). nC (c) The electric potential immediately outside another charged conducting sphere is 260 V, and 10.0 cm farther from the center the magnitude of the electric field is 380 V/m. Determine the radius (in cm) of any sphere for which this is possible. (Enter your answers from smallest to largest. If only one value exists, enter "NONE" in the second answer blank.) R1= cmR2= cm (d) Determine the charge on the sphere (in nC) for each value of R. (If only one value exists, enter "NONE" in the second answer blank.) q1= nCq2= nC
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Library CARES Drive to Video da Tutors utor J Context dShelf Digital A solid spherical conductor has a radius R and has a charge Q. Assume the potential is zero at infinity. Consider points inside the sphere, r < R, which of the following statements best describes the behavior of the electric potential, V,inside the sphere: O The electric potential is a non zero constant everywhere inside the sphere O The electric potential is zero everywhere inside the sphere, O The electric potential is proportional to the distance from the center Ohe electric potential is inversely proportional to the distance squared O The electric potential is inversely proportional to the distance cubed from the center 31
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