Three charges are placed at the corners of an equilateral triangle of side length 3.0 cm. Let Q1 = +2.0 μC, Q2 = -1.0 μC, and Q3 = +3.0 μC. What is the magnitude of the net force on Q3? Express your answer to the nearest N.

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Question 9
Three charges are placed at the corners of an equilateral triangle of side length 3.0 cm.
Let Q₁ = +2.0 μC, Q₂ = -1.0 μC, and Q3 = +3.0 μC.
What is the magnitude of the net force on Q3?
Express your answer to the nearest N.
Transcribed Image Text:Question 9 Three charges are placed at the corners of an equilateral triangle of side length 3.0 cm. Let Q₁ = +2.0 μC, Q₂ = -1.0 μC, and Q3 = +3.0 μC. What is the magnitude of the net force on Q3? Express your answer to the nearest N.
Expert Solution
Step 1

Given that,

Side length of equilateral triangle r = 3.0 cm = 0.03 m

Three point charges are :

Q1=+2.0 μCQ2=-1.0 μCQ3=+3.0 μC

According to Coulomb's law, the force of attraction or repulsion between two charged bodies is directly proportional to the product of their charges and inversely proportional to the square of the distance between them.

F=kQ1Q2r2

The value of k=9×109 N m2/C2

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