Total Current Formula:
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Definition: This calculator computes the total current in a parallel circuit by summing the individual branch currents.
Purpose: It helps electricians, engineers, and students determine the total current draw in parallel electrical circuits.
The calculator uses the formula:
Where:
Explanation: In parallel circuits, the total current is the sum of all individual branch currents, following Kirchhoff's Current Law.
Details: Accurate current calculation ensures proper circuit design, correct fuse/breaker sizing, and safe operation of electrical systems.
Tips: Enter the current for each parallel branch (minimum 2 required). All values must be ≥ 0. Add more branches as needed in your actual calculations.
Q1: Why does current add in parallel circuits?
A: Current divides among parallel paths but the total current equals the sum of all branch currents (conservation of charge).
Q2: How does this differ from series circuits?
A: In series circuits, current remains the same throughout, while in parallel it divides among branches.
Q3: What if I have more than 3 branches?
A: The calculator shows the principle - simply add all branch currents together in your calculations.
Q4: Does this account for resistance?
A: This calculator works with known currents. For resistance calculations, use Ohm's Law (I = V/R).
Q5: What's the practical application?
A: Essential for designing electrical systems, calculating power requirements, and preventing circuit overloads.