Chapter 23 Homework.pdf - Chapter 23 Due 8:00am on Monday October 8 2018 You will receive no credit for items you complete after the assignment is due

# Chapter 23 Homework.pdf - Chapter 23 Due 8:00am on Monday...

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Chapter 23 Due: 8:00am on Monday, October 8, 2018 You will receive no credit for items you complete after the assignment is due. Grading Policy Exercise 23.2 A point charge is held stationary at the origin. A second charge is placed at point , and the electric potential energy of the pair of charges is . When the second charge is moved to point , the electric force on the charge does of work. Part A What is the electric potential energy of the pair of charges when the second charge is at point ? Express your answer using two significant figures. ANSWER: Correct Exercise 23.10 Four electrons are located at the corners of a square 10.0 on a side, with an alpha particle at its midpoint. Part A How much work is done by the Coulomb force when the alpha particle moves to the midpoint of one of the sides of the square? ANSWER: Correct Electric Potential Ranking Task In the figurethere are two point charges, and . There are also six positions, labeled A through F, at various distances from the two point charges. You will be asked about the electric potential at the different points (A through F). 7.3×10 −8 = 6.08×10 −21 Typesetting math: 100%
Part A Rank the locations A to F on the basis of the electric potential at each point. Rank positive electric potentials as higher than negative electric potentials. Rank the locations from highest to lowest potential. To rank items as equivalent, overlap them. Hint 1. Definition of electric potential The electric potential surrounding a point charge is defined by , where is the source charge creating the electric potential and is the distance between the source charge and the point of interest. If more than one source is present, determine the electric potential from each source and sum the results. Hint 2. Conceptualizing electric potential Because positive charges create positive electric potentials in their vicinity and negative charges create negative potentials in their vicinity, electric potential is sometimes visualized as a sort of "elevation." Positive charges represent mountain peaks and negative charges deep valleys. In this picture, when you are close to a positive

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