In which case does an electric field do positive work on a charged particle A. A negative charge moves opposite to the direction of the electric field. B. A positive charge is moved to a point of higher potential energy. C. A positive charge completes one circular path around a stationary positive charge. D. A positive charge completes one elliptical path around a stationary positive charge.

P3:

A proton is moved in the direction opposite to an external E-field. Choose the statement that best describes what is happening to the proton. A) it is moving from high potential to low potential and electrical energy of a system consisting of the proton and the electric field is increasing. B) it is moving from low potential to high potential and electrical energy of a system consisting of the proton and the electric field is decreasing. C) it is moving from low potential to high potential and the electrical energy of a system consisting of the proton and the electric field is increasing. D) it is moving from high potential to low potential and electrical potential energy of a system consisting of the proton and the electric field is decreasing.

In the figure below, what will be your work done in joules if you move an electron along the 70-V equipotential? 3 4 90 V 80 V 70 V 60 V 50 V A. o. 0. B. 30. C. 50. D. 60. E. I need the electric force and the distance traveled.