49:028.02x - Lect 4 - Electrostatic Potential, Electric Energy, Equipotential SurfacesLectures by Walter Lewin. They will make you ♥ Physics.230
Multiple ChoiceAn electron moves from point A to point B. The potential difference between these two points is 100 V. What is a. the point of higher potential?b. the work done on the electron?c. the final speed of the electron if its initial speed is zero?63166Has a video solution.
Multiple ChoiceWhat work is needed to assemble an equilateral triangle of side length 5 cm, with a 5µC charge at each vertex?45984Has a video solution.
Multiple ChoiceHow much work does a 12V battery do when it moves 2.4C from the negative terminal to the positive terminal?84
Textbook QuestionA particle with charge +4.20 nC is in a uniform electric field E directed to the left. The charge is released from rest and moves to the left; after it has moved 6.00 cm, its kinetic energy is +2.20x10^-6 J. What is (a) the work done by the electric force?77Has a video solution.
Textbook QuestionA point charge q_1=+2.40 μC is held stationary at the origin. A second point charge q_2=-4.30 μC moves from the point x=0.150 m, y=0 to the point x=0.250 m, y=0.250 m. How much work is done by the electric force on q_2?264Has a video solution.
Textbook QuestionHow much charge does a 9.0 V battery transfer from the negative to the positive terminal while doing 27 J of work?1
Textbook QuestionLight from the sun allows a solar cell to move electrons from the positive to the negative terminal, doing 2.4×10^−19 J of work per electron. What is the emf of this solar cell?
Textbook QuestionWhat is the emf of a battery that does 24 J of work to move 2.0×10^19 electrons from the positive to the negative terminal in 2.0 s?1
Textbook QuestionA 1.5 V battery provides 0.50 A of current. (b) How much work does the charge escalator do to lift 1.0 C of charge?
