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| An interesting question |
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| Sarvesaa:
Dear friends, Today I appeared for a competitive exam where I got this question they are asking the total current through circuit. I have attached the circuit down. I think you find it interesting. 8) :popcorn: :-+ Thank you |
| TimFox:
Since, by inspection, there is no voltage across the "diagonal" 5 ohm resistor, and therefore no current through it, the solution is straightforward. |
| eugene:
--- Quote from: TimFox on July 26, 2022, 03:20:59 pm ---Since, by inspection, there is no voltage across the "diagonal" 5 ohm resistor, and therefore no current through it, the solution is straightforward. --- End quote --- Which I assume is the real reason for the question: to see who does and does not see the symmetry. |
| pqass:
How to solve resistor cube problems: |
| Sarvesaa:
Yes its straight forward if you know that 3/6 = 3/6 so its simply a balanced wheatstone bridge. Since it is balanced no current flows through the 5\$\Omega\$ resistor. The total resistance is 6\$\Omega\$ and the total current is 1 ampere with 6volt battery. :-+ Thank you Edit The total current is 0.8333 A with 5volt battery as given in the circuit |
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