What is the distance between two spheres, each with a charge of 2.5 x 10-6 c, when the force between them is 0.50 n?

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20-03-2018
Physics

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What is the distance between two spheres, each with a charge of 2.5 x 10-6 c, when the force between them is 0.50 n?

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Mindaka Mindaka · Answer 1 · 2018-03-29T14:25:32+02:00

Mindaka Mindaka

29-03-2018

In this case, Coulomb's Law applies:

F = 1/(4πε₀) · (Q₁Q₂/r²)

You can solve it for r:

r = √[1/(4πε₀) · (Q₁Q₂/F)]

Plugging in numbers:

r = √[1/(4π·8.85×10⁻¹²) · (2.5×10⁻⁶)²/0.50]
= 0.335m

The correct answer is: the two charges are 0.335m apart.

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