Determine the dielectric constant of the transformer oil, if two identical charges

Determine the dielectric constant of the transformer oil, if two identical charges of 2 • 10-5 C each, being in it at a distance of 14 cm, interact with a force of 90N.

Coulomb’s law states:

F = 1 / 4πέέ0 * q1 * q2 / r ^ 2, where F is the force, έ is the dielectric constant, έ0 is the electrical constant, q1 and q2 are charges, r is the distance.

έ = F * 4πέ0 * r ^ 2 / q1 * q2.



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