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Two spherical metal objects are brought together in a vacuum to a separation distance of 1 mm. If a Coulomb of charge could be placed on one of the objects without any electrical discharge the force of attraction between the two objects would be

A. 9 × 10^12 N
B. 9×10^13 N
C. 9 × 10^14 N
D. 9 × 10^15 N

Respuesta :

Answer: The force of attraction between the two objects would be 9 × 10^15 N.

Option D is correct

Explanation: Please see the attachment below

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Answer:

Option D, F = 9.0×10¹⁵ N

Explanation:

Given that the two objects have charges Q1 = Q2 = 1C

r = 1mm = 1×10‐³m = distance between the spheres (charged bodies)

k = 9.0×10‐⁹ Nm²/C² = electric force constant

F = ( k×Q1×Q2)/r²

F = ( 9.0×10‐¹²×1×1)/(1×10‐³)²

F = 9.0×10¹⁵ N

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