Object A has a charge q on it,object B has a charge q on it,and object C has a charge 3q on it.These charges are arranged,one each,at the vertices of an equilateral triangle.Which charge has the greatest magnitude electric force on it?
A)A
B)B
C)C
D)All have equal magnitude forces on them.
E)A and B

Question

Object A has a charge q on it,object B has a charge q on it,and object C has a charge 3q on it.These charges are arranged,one each,at the vertices of an equilateral triangle.Which charge has the greatest magnitude electric force on it?​
A)A
B)B
C)C
D)All have equal magnitude forces on them.
E)​A and B

Quizplus · Accepted Answer

The magnitude of the electric force between two charged objects is given by Coulomb's Law, which states that it is directly proportional to the product of the charges and inversely proportional to the square of the distance between them. In this case, all three charges are equidistant from each other, so the distance factor is the same for all of them. Thus, the magnitude of the electric force on each object is directly proportional to the charge on the other object, and inversely proportional to the square of the distance between them. Since object C has the greatest charge of 3q, it will experience the greatest magnitude of electric force.

Object a Has a Charge Q on It,object B Has