Solving a problem in physics section 44 paragraph 71 el

Solving a problem in physics section 44 paragraph 71 el

71. The electrostatic field created by a sphere of radius R = 5 cm, a uniformly charged surface density σ = 1 nC / m2. To determine the potential difference between two points of the field lying at distances r1 = 10 cm and r2 = 15 cm from the center of the sphere.

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Detailed solution. Decorated in Microsoft Word 2003. (Target decided to use formula editor)