circuit-diagram

How to Solve Complex Electrical Circuits – Shortcuts and Tricks

The solution of complex electrical circuits can be arrived at by applying Kirchhoff’s Current and Voltage Laws across loops and junction. But this approach is very tedious, involves a lot of calculation steps and is prone to human errors at each step.

30-seconds Shortcut Technique to Solve Electric Circuits (Must See!)

Also another Shortcut Technique for multiple branch circuits. Click here

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Condition for this theorem

For this shortcut to work the following conditions must be satisfied,

  • a given circuits should be redraw-able to a series of branches
  • and each branch should have a resistor element in it.

three-branch

The above circuit has three branches: ACB, AB and ADB. All these branches has at least one resistor element in it.

The beauty of this approach is that the calculation is just a one-step formula!

The results are summarized as below

Resistance \Omega Voltage Drop, V Current, Amp Direction
R1 = 6 -1.2 0.2 C to A
R2 = 6 4.8 0.8 A to B
R3 = 12 -7.2 0.6 D to A

This is one of the shortcut tricks to solve complex electrical circuit problems.

ZoomPhysics - A Physics learning software (Windows) for students preparing for Engineering & Medical Entrance Exams
FREE Download {132 MB}
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