Numerical

This problem determines the number of individual electrons in a 100-micro-coulomb total charge. The underlying idea is that each electron carries a fixed, tiny standard charge equal to $1.6 times 10-19 text Coulombs. Explanation: To find the total number of electrons, you divide the total charge by the charge of a single electron.Result: Dividing 100 micro-coulombs by the charge of one electron gives approximately $6.25 times 10^{14}$ electrons (625 trillion electrons). This problem determines the push or pull (force) between two static electric charges placed at a distance from one another. The concept is that, according to Coulomb's Law, the force depends directly on the strength of both charges and inversely on the square of the distance between them.Explanation: You take the two given charges ($10 muC$ and $5 muC$), convert their separation distance from 150 centimeters into meters ($1.5 meters), and apply Coulomb's constant.The resulting electrostatic force is These pages calculate the value of two identical electric charges when the force between them and their distance are already known. The concept: It uses Coulomb's Law in reverse. Problems 3 and 4: Finding the Charge Value from Force and Distance Charge squared ($q2$) is the result of multiplying both charges together because they are the same. In order to solve for $q2$, the equation is rearranged with a force of $0.8 text Newtons and a distance of $0.1 text meters. Taking the square root of the final calculated value isolates the charge ($q$). As a result, each charge has a magnitude of roughly $9.4 times 10-7 text Coulombs ($) or $0.94 muC ($).