# Find the modulus of the force of interaction of two charges q1 = q2 = q = 1.0 C each

Find the modulus of the force of interaction of two charges q1 = q2 = q = 1.0 C each in a vacuum at a distance of r = 1.0 km from each other.

Initial data: q (charge value) = q1 = q2 = 1 C; the charges are in a vacuum; R (distance at which the charges are located) = 1 km = 1000 m.

Constants: k (proportionality coefficient) = 9 * 109 N * m2 / Cl2.

The modulus of the force of interaction of two given charges is determined by the formula (Coulomb’s law): F = k * q1 * q2 / R ^ 2 = k * q2 / R2.

Let’s calculate the modulus of the force of interaction: F = 9 * 10 ^ 9 * 12/10002 = 9 * 10 ^ 3 N = 9 kN.

Answer: The modulus of the force of interaction of two given charges is 9 kN.

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