1. What is Branch Current in Parallel Circuits?

Definition: This calculator determines the current flowing through a specific branch in a parallel electrical circuit.

Purpose: It helps electricians, engineers, and students analyze and design parallel circuits by calculating current in individual branches.

2. How Does the Calculator Work?

The calculator uses Ohm's Law for parallel branches:

Where:

• \( I_{branch} \) — Current through the branch (amps)
• \( V \) — Voltage across the branch (volts)
• \( R_{branch} \) — Resistance of the branch (ohms)

Explanation: In parallel circuits, the voltage across each branch is the same, while currents divide according to each branch's resistance.

3. Importance of Branch Current Calculation

Details: Calculating branch currents helps in proper circuit design, component selection, and ensuring safety by preventing overloads.

4. Using the Calculator

Tips: Enter the circuit voltage and the specific branch resistance. Both values must be positive numbers (resistance > 0).

5. Frequently Asked Questions (FAQ)

Q1: Does this work for AC circuits?
A: For purely resistive AC circuits, yes. For reactive components, you need impedance calculations.

Q2: How is this different from series circuits?
A: In series circuits, current is the same through all components, while in parallel circuits, current divides among branches.

Q3: What if I have multiple branches?
A: Calculate each branch separately using its specific resistance while keeping voltage constant.

Q4: How do I measure branch resistance?
A: Use an ohmmeter with the branch disconnected from the circuit.

Q5: What's the relationship to total current?
A: Total circuit current is the sum of all branch currents (Kirchhoff's Current Law).