Net Electric Charge Equation:
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The net electric charge is the algebraic sum of all individual charges in a system. For two charges, it's simply the sum of Q₁ and Q₂. This principle follows the law of charge conservation.
The calculator uses the net charge equation:
Where:
Explanation: The equation simply adds the two charges together. Remember that charges can be positive or negative, so the net charge may be smaller than either individual charge.
Details: Calculating net charge is fundamental in electrostatics, helping determine electric fields, forces between charged particles, and understanding charge distributions in systems.
Tips: Enter both charges in Coulombs. The calculator accepts both positive and negative values. The result will be in Coulombs (C).
Q1: What is the unit of electric charge?
A: The SI unit of electric charge is the Coulomb (C). 1 C equals approximately 6.242×10¹⁸ elementary charges.
Q2: Can the net charge be zero?
A: Yes, if Q₁ = -Q₂ (equal magnitude but opposite signs), the net charge will be zero (neutral system).
Q3: How does this apply to more than two charges?
A: For multiple charges, simply extend the equation: Qnet = Q₁ + Q₂ + Q₃ + ... + Qn.
Q4: What's the difference between charge and current?
A: Charge (Q) is a property of matter measured in Coulombs, while current (I) is the flow of charge per unit time (Amperes = Coulombs/second).
Q5: How precise should my charge measurements be?
A: Precision depends on your application. The calculator accepts up to 4 decimal places for precise calculations.