In the circuit the resistor 9 ohms is cancelled?

by chessy1991
September 07, 2018

The bridge is balanced so the 9 ohm resistor has no voltage across it and sees no current.

by mikerogerswsm
September 07, 2018

explain more mathematically please... i thought that 8 ohms , and 12 ohms resistors are connected in series , and similarly the 4+6 ohms resistors .. then the whole are in parallel...

by chessy1991
September 08, 2018

There is 1/3 volt across the 4 ohms and 1/3 volt across the 6 ohms. In my world 1/3 = 1/3.

by mikerogerswsm
September 08, 2018

I suppose if you want a formal process you need to replace the 4 ohm and 8 ohm resistor by the Thevenin equivalent and then do the same for the 6 ohm and the 12 ohm. You really need to draw your circuit with + at the top. Having it sideways does not help conceptualisation. Hope this helps. mike

by mikerogerswsm
September 08, 2018

by mikerogerswsm
September 09, 2018

Thanks a lot mike.It was helpful!

by chessy1991
September 16, 2018

No Answers

No answers yet. Contribute your answer below!

Your Answer

You must log in or create an account (free!) to answer a question.

Log in Create an account

Go Ad-Free. Activate your CircuitLab membership. No more ads. Save unlimited circuits. Run unlimited simulations.

Search Questions & Answers

Ask a Question

Anyone can ask a question.

Did you already search (see above) to see if a similar question has already been answered? If you can't find the answer, you may ask a question.

About This Site

CircuitLab's Q&A site is a FREE questions and answers forum for electronics and electrical engineering students, hobbyists, and professionals.

We encourage you to use our built-in schematic & simulation software to add more detail to your questions and answers.

Acceptable Questions:

  • Concept or theory questions
  • Practical engineering questions
  • “Homework” questions
  • Software/hardware intersection
  • Best practices
  • Design choices & component selection
  • Troubleshooting

Unacceptable Questions:

  • Non-English language content
  • Non-question discussion
  • Non-electronics questions
  • Vendor-specific topics
  • Pure software questions
  • CircuitLab software support

Please respect that there are both seasoned experts and total newbies here: please be nice, be constructive, and be specific!

About CircuitLab

CircuitLab is an in-browser schematic capture and circuit simulation software tool to help you rapidly design and analyze analog and digital electronics systems.