Electric charge can be transferred through conduction, where charges move through direct contact between materials; through induction, where charges are redistributed within a material without direct contact; and through friction, where charges are transferred by rubbing two materials together.
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The net electric charge is the sum of the charges of ball A and ball B. So, the net electric charge is 8 Coulombs.
The net static electric charge on the metal sphere would be +3 elementary charges. This means the sphere has an excess of 3 positive charges.
Electric charge is a fundamental property of matter that can be positive, negative, or neutral. Like charges repel each other, while opposite charges attract. Electric charge is conserved, meaning it cannot be created or destroyed, only transferred from one object to another.
The formula to calculate the force on a charge in an electric field is: ( F = qE ), where ( F ) is the force, ( q ) is the charge, and ( E ) is the electric field strength. Given ( F = 3.0 \times 10^{-3} , \text{N} ) and ( E = 2.0 , \text{N/C} ), we can rearrange the formula to solve for the charge, yielding ( q = \frac{F}{E} = \frac{3.0 \times 10^{-3}}{2.0} = 1.5 \times 10^{-3} , \text{C} ). Thus, the magnitude of the charge is ( 1.5 \times 10^{-3} , \text{C} ).
Rubbing two objects together to create static electricity. Using a battery to create a flow of electrons through the object. Exposing the object to an electric field to induce a charge.