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

https://www.circuitlab.com/editor/#?id=27j7dp3yy977

by mikerogerswsm
September 09, 2018

Thanks a lot mike.It was helpful!

by chessy1991
September 16, 2018
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