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Answer: Shown are three separate pairs of point charges.

Chapter 22, Problem 2R

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QUESTION:

Problem 2R

Shown are three separate pairs of point charges. Assume the pairs interact only with each other. Rank the magnitudes of the force between the pairs from largest to smallest.

Questions & Answers

QUESTION:

Problem 2R

Shown are three separate pairs of point charges. Assume the pairs interact only with each other. Rank the magnitudes of the force between the pairs from largest to smallest.

ANSWER:

Solution 2R

STEP 1:

In the 1st pair the charges are,

   ,

The distance between them is “x”.

The force between them according to coulomb’s law will be,

   

       

       

The minus sign indicates the force is attractive.

The magnitude is .

STEP 2:

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