Two particles, one with charge − 4.61 μC and one with charge 6.07 μC, are 1.34 cm apart. What is the magnitude of the force that one particle exerts on the other?

The magnitude of the force that one of the particles exerts on the other is F = 1.4026 x N

Using Coulomb's law which states that "the force of attraction or repulsion between two charged particles is directly proportional to the product of the magnitude of their charges and inversely proportional to the square of the distance separating these particles".

Mathematically;

F = k x

Where;

k = Coulomb's constant = 9 x N /

= Charge on first particle = - 4.61 μC = - 4.61 x C (You may ignore the sign. The sign is just showing that the particle is negatively charged)

= Charge on second particle = 6.07 μC = 6.07 x C

r = distance between the two particles = 1.34cm = 0.0134m = 1.34 x m

Substituting these values into the equation above gives;

F = 9 x x 4.61 x x 6.07 x ÷

Solve the equation;

F = 9 x 4.61 x 6.07  x x x ÷ (1.34 x 1.34 x )

F = 9 x 4.61 x 6.07  x x x x ÷ (1.34 x 1.34)

F = 251.8443 x 10 ÷ 1.7956

F = 140.26 x 10

F = 1.4026 x N

Therefore the magnitude of the force that one of the particles exerts on the other is F = 1.4026 x N

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