A 3×10-8 C charge which has an electric potential energy of 9×10-7 J, was placed in the vicinity of electric field that changed its potential energy to 4×10-7 C. a) Calculate the electric potential energy difference of the charge from its initial to final position. b) Calculate the electric potential difference of the charge from its initial to final position.

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A 3×10-8 C charge which has an electric potential energy of 9×10-7 J, was placed in the vicinity of electric field that changed its potential energy to 4×10-7 C.

a) Calculate the electric potential energy difference of the charge from its initial to final position.

b) Calculate the electric potential difference of the charge from its initial to final position.

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