Two charges move along an E-field such that they have the same change of electric potential....
Two charges move along an E-field such that they have the same change of electric potential. Which of the following can be concluded?
a. The charges have the same sign
b. Both charges gain kinetic energy
c. Both charges lose kinetic energy
d. None of the options given are correct.
I thought a and b were correct, but my teacher said there is only one answer.
Homework Answers
According to conservation of energy, electric field does work on positive charged particle when charge moves in the direction of electric field and it gains kinetic energy that is equal to the loss in potential energy.
Similarly, If charge is negative, then potential energy is positive. The system gains potential energy that is equal to the loss in Kinetic energy when the charge moves in the direction of the field, since an external agent does work on the charge.
As, nature of charges are unknown, option 'd' is correct.
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