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Conceptual Physics | 12th Edition | ISBN: 9780321909107 | Authors: Paul G. Hewitt
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How does the magnitude of electrical force between a pair

Chapter 14, Problem 23E

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QUESTION:

How does the magnitude of electrical force between a pair of charged particles change when the particles are moved half as far apart? One-third as far apart?

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QUESTION:

How does the magnitude of electrical force between a pair of charged particles change when the particles are moved half as far apart? One-third as far apart?

ANSWER:

Solution 23E Step 1 of 3: Electric force From coulomb's law, the force between two charged particle is directly proportional to the product of the charges and inversely proportional to the square of the distance between them. That is for two charge at r distance apart, K q q Electric force, F = r2 2 Where K is constant, q and q are two charges at r distance apart. 1 2 Which means The magnitude of the electric force is related to distance as, F r2

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