Physics

Problem

The effective resistance between points

P

and

Q

of the electrical circuit shown in the figure is: ![](https://storage.googleapis.com/diraq-contents/PROD/homework-question-parsing/marker/18d08714981d40859e3bafc4bd2f0916/8b10a91eb4c2b5dfd1727054a5e44e1c_img.jpg)

\frac{2Rr}{R+r}

\frac{2R(R+r)}{3R+r}

2r+4R

\frac{5R}{2}+2r

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