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the potential difference bewteen point a and b is (x) volts

are the two circuits equvalent ? I have actually got a different problem (wheatstone bridge) but,I want to make sure that there is no mistake in my assumption before asking that question. In the circuit R1,R2,R3,R4 are resistance. 'i' represents the current flowing through the mid wire.

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closed as off-topic by ACuriousMind Dec 27 '18 at 17:49

This question appears to be off-topic. The users who voted to close gave this specific reason:

  • "Homework-like questions should ask about a specific physics concept and show some effort to work through the problem. We want our questions to be useful to the broader community, and to future users. See our meta site for more guidance on how to edit your question to make it better" – ACuriousMind
If this question can be reworded to fit the rules in the help center, please edit the question.

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    $\begingroup$ Please note that homework-like questions and check-my-work questions are generally considered off-topic here. We intend our questions to be potentially useful to a broader set of users than just the one asking, and prefer conceptual questions over those just asking for a specific computation. $\endgroup$ – ACuriousMind Dec 27 '18 at 17:49
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    $\begingroup$ Please, do not use arrows in the middle of the wire for currents. I've been thinking it was a diode for a while haha. Write the arrows separately instead. $\endgroup$ – FGSUZ Dec 27 '18 at 18:34
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Indeed they are equivalent. You can see this by joining the 'inner' ends of the four resistors together by connecting them to a single 'point' junction rather than using the wires you've labelled "i". Incidentally the currents you've labelled "i" in your two diagrams aren't generally the same.

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  • $\begingroup$ Can you look at this user's next question? It has been put on hold even though it is not a homework question. $\endgroup$ – harshit54 Dec 28 '18 at 18:22

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