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Electrons Per Second Formula:
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The electrons per second calculation determines the number of electrons flowing through a point in an electrical circuit per second. This is derived from the electric current (measured in amperes) and the elementary charge of an electron.
The calculator uses the formula:
Where:
Explanation: One ampere equals one coulomb per second. Since each electron has a charge of 1.6 × 10⁻¹⁹ coulombs, dividing current by the elementary charge gives the number of electrons flowing per second.
Details: Understanding electron flow is fundamental in electronics, semiconductor physics, and electrical engineering. It helps in designing circuits, analyzing current flow, and understanding charge transport mechanisms.
Tips: You can either enter the current directly, or provide power and voltage to calculate current first. All values must be positive numbers.
Q1: What is the elementary charge value?
A: The elementary charge (e) is approximately 1.60217662 × 10⁻¹⁹ coulombs, which is the electric charge carried by a single proton or electron.
Q2: How many electrons are in one ampere?
A: One ampere represents approximately 6.242 × 10¹⁸ electrons flowing per second past a given point.
Q3: Can I calculate from power and voltage only?
A: Yes, the calculator can compute current from power and voltage using I = P/V, then calculate electrons per second.
Q4: Why is this calculation important?
A: It's crucial for understanding current flow at the atomic level, important in semiconductor design, electrochemistry, and particle physics.
Q5: Does this apply to AC current as well?
A: For AC current, this calculation gives the instantaneous electron flow rate. The average flow over a complete cycle would be zero for pure AC.