Problem Set 1

# Problem Set 1 - MASSACHUSETTS INSTITUTE OF TECHNOLOGY...

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PS01-1 MASSACHUSETTS INSTITUTE OF TECHNOLOGY Department of Physics 8.02 Spring 2008 Problem Set 1 Due: Wednesday, February 13 at 11 am. Hand in your problem set in your section slot in the boxes outside the door of 32-082. Make sure you clearly write your name, table and section (e.g. L01 table 2) on your problem set. Problem 1 Concept questions (10 points) (a) (5 points) Two objects with charges q and 3 q + are placed on a line as shown in the figure below. Besides an infinite distance away from the charges, where else can the electric field possibly be zero? 1. Between the two charges. 2. To the right of the charge on the right. 3. To the left of the charge on the left. 4. The electric field is only zero an infinite distance away from the charges. Explain your reasoning.

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PS01-2 (b) (5 points). Two objects with charges 4 Q and Q lie on the y-axis. The object with the charge 4 Q is above the object with charge Q . Below are four possible “grass seed” representations of the electric field of the two charges. Which of these representations is most nearly right for the two charges in this problem?
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## This note was uploaded on 11/10/2009 for the course 8 8.02 taught by Professor Hudson during the Spring '07 term at MIT.

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Problem Set 1 - MASSACHUSETTS INSTITUTE OF TECHNOLOGY...

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