Solving a problem in physics section 71 point 64 electr

Solving a problem in physics section 71 point 64 electr

64. An electrostatic field in a medium with a dielectric constant ε = 2.2 is created by a point charge Q = 2 nC. Determine: 1) the potential difference between two points located from the charge at distances r1 = 5 cm and r2 = 20 cm; 2) the work A performed by the forces of an electrostatic field when moving between these charge points Q1 = 1 nC.

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