Answer to Question #5751 in Electric Circuits for dani

Question

If you use 20 J of work to push a 2-C charge into an electric field, its voltage with respect to its starting postition is A. 10 V, B. less than 10 V, C. more than 10 V

Answer 1

Answer: A. 10V
Potential difference of 1V this is such a difference, that the charge transfer in 1C requires 1 J of energy.
By the condition we have charge of 2C, and the work of 20 J respectively leaves just 10 V.