parts a-c Consider two points in an electric field. The potential at point 1, V_

Question

parts a-c

Consider two points in an electric field. The potential at point 1, V_1, is 27 V. The potential at point 2, V_2, is 166 V. A proton is moved from point 1 to point 2. Write an equation for the change of electric potential energy Delta U of the proton, in terms of the symbols given and the charge of the proton e. Solve for the numerical value of the change of the electric potential energy in electron volts (eV). How much work is done by the electric force during the motion of the proton in J?

Explanation / Answer

a) electric potential energy = q*(V2 -V1)

b) electric potential energy = 1.6*10^-19 * (166 - 27)

= 2.224*10^-17 J

c) work done = change in electrostatic potential energy

= 2.224*10^-17 J

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