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    Physics for Scientists and Engineers
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    Exam 21: The Electric Field I: Discrete Charge Distributions
  5. Question
    Two Charges Q<sub>1</sub> and Q<sub>2</sub> Are a Distance D Apart
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Two Charges Q1 and Q2 Are a Distance D Apart

Question 55

Question 55

Multiple Choice

Two charges Q1 and Q2 are a distance d apart.If the electric field is zero at a distance of 3d/4 from Q1 (towards Q2) ,then what is the relation between Q1 and Q2?


A) Q1 = Q2 /9
B) Q1 = 9Q2
C) Q1 = Q2 /3
D) Q1 = 3Q2
E) Q1 = 4Q2 /3

Correct Answer:

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