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Electricity and Magnetism

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Potential Near a Positively Charged Sphere

EANDM-3SB2KO

The accompanying figure shows a conducting sphere located at the origin with an excess of protons over electrons. The figure is in proportion.

What is the order of the value of the potential at the four indicated locations, the highest potential first?

A

d,b,a,c

B

c,b,a,d

C

c,a,b,d

D

c,a,d,b