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Strength of Electrical Forces Quick Check

3 of 53 of 5 Items
Question
Which of the following interactions in the data set below will have an attractive electrical force?

Interaction Object 1 Charge Object 2 Charge
A +4 -3
B +1 -1
C +1 +1
D -1 -1


(1 point)
Responses

Interaction C

Interaction B

Interaction A and B

Interaction C and D

1 answer

The correct answer is Interaction C, because when two objects have charges with the same sign (in this case both are positive), they will repel each other. Therefore, Interaction A and D will have a repulsive electrical force, while Interaction B has no net electrical force since the charges are equal in magnitude and opposite in sign. Interaction C, with one positively charged object and one negatively charged object, will have an attractive electrical force.
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