At what distance 2 point charges 40 and 20 C are attracted to each other by a force of 2 * 10 ^ -3 N.
| May 17, 2021 | education
q1 = 40 Cl.
q2 = 20 Cl.
F = 2 * 10 ^ -3 N.
k = 8.98 * 10 ^ 9 N * m ^ 2 / Kl ^ 2.
r -?
According to Coulomb’s law, the interaction force F between charges is determined by the formula: F = k * q1 * q2 / r ^ 2, where k is the electrostatic constant, q1, q2 are the values of the interacting charges, r is the distance between the charges.
The formula for determining the distance between charges will be: r = √ (k * q1 * q2 / F).
r = √ (8.98 * 10 ^ 9 N * m ^ 2 / Cl ^ 2 * 40 Cl * 20 Cl / 2 * 10 ^ -3 N) = 59.9 * 10 ^ 3 m = 59933 m.
Answer: the charges are at a distance r = 59933 m from each other.
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