Answer: D - As the two charges get closer, the attractive or repulsive force grows exponentially larger. This is due to the r2 term. As the two charges get farther away, the force also grows exponentially weaker.

As the two charges get closer and closer, the attractive or repulsive force grows exponentially larger.

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Praxis II General Science

Category - Physics

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Coulomb’s Law is given as , where q is the charge, F is the electric force, k is Coulomb’s constant, and r is the distance between the two charges. Using this information, which of the following statements is true?

If charge 1 is larger than charge 2, then the force will be greater than if charge 2 is larger than charge 1.
If the value of k increases, then the force generated decreases.
The farther away the two charges are, the greater the force generated.
As the two charges get closer and closer, the attractive or repulsive force grows exponentially larger.
None of the above are true.

Explanation

Answer: D - As the two charges get closer, the attractive or repulsive force grows exponentially larger. This is due to the r² term. As the two charges get farther away, the force also grows exponentially weaker.

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