Physics

Current Divider Calculator

Find how current splits between two parallel resistors.

Calculated Output

Current through R₁ (A) 1.5

Current through R₂ (A) 0.5

Formula: I₁ = I·R₂ ÷ (R₁ + R₂)

Step-by-Step Breakdown

1. Values used:

2. Total current = 2 A

3. Resistor 1 = 100 Ω

4. Resistor 2 = 300 Ω

6. Current through R₁ = 1.5A

7. Current through R₂ = 0.5A

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The math behind it

I₁ = I·R₂ ÷ (R₁ + R₂). The current splits inversely with resistance.

2 A across 100 Ω and 300 Ω → 1.5 A and 0.5 A.

Why does the smaller resistor get more?

It offers an easier path, so more current flows through it.