Provide Given, Required, Formula, Solution and Answer.

Manual Computations Only.

Task 1. Electric Potential and Electric Potential Energy. Read each statement carefully. Answer the following questions briefly.

1. If two points are at the same potential, does this mean that no work is done in moving a test charge from one point to the other? Does this imply that no force needs to be exerted? Explain.
2. If a negative charge is initially at rest in an electric field, will it move toward a higher or lower potential region? What about a positive charge? How does the potential energy of the charge change in each instance?
3. An electron is accelerated by a potential difference of, say, 0.10 V. How much greater would its final speed be if it is accelerated with four times as much voltage? Explain.

Task 2. Problem Solving. Read each problem carefully. Show your solution and box your final answer. Kindly attach the picture or image of your answer here and then convert it to PDF.

1. Suppose an electron in the picture tube of a television set is accelerated from rest through a potential difference of +5000 V. (a) What is the change in electric potential energy of the electron? (b) What is the speed of the electron (m = 9.1 x 10 -31 kg) as a result of this acceleration?
2. What is the electric potential at 2.5 x 10 -15 m away from a proton? What is the electric potential energy of a system that consists of two protons 2.5 x 10 -15 m apart - as might occur inside a typical nucleus?
3. Draw a conductor in the shape of a football. This conductor carries a net negative charge. Draw in a dozen electric field lines and two equipotential lines.