Question

What is the equivalent resistance between points A and B?

With full steps and explanation!!​

Answer 1

Answer:

2r/3

Explanation:

In such questions, we have to observe the potential difference of the points

Since, A and D are connected through a plain wire, their potentials would be equal. Thus, V1(at A)=V1(at B)

Similarly, V2(at B)=V2(at C)

Hence, this diagram can be remade.

We notice that these three resistances are between the same points A and B

It would give us a parallel combination of these 3 resistances between the points A and B of potential V1 and V2

Thus, the equivalent resistance will be 2r/3

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