If the size of the charge value is tripled for both of two point charges maintained at a constant separation,the mutual force between them will be changed by what factor?
A)9
B)3
C)1/3
D)1/9
E)1

Question

If the size of the charge value is tripled for both of two point charges maintained at a constant separation,the mutual force between them will be changed by what factor?
A)9
B)3
C)1/3
D)1/9
E)​1

Quizplus · Accepted Answer

The mutual force between two charges is directly proportional to the product of their charges, so if both charges are tripled, the product of their charges will be 9 times greater. Therefore, the mutual force between them will also be 9 times greater.

If the Size of the Charge Value Is Tripled for Both