I've got a pipe P in which water is flowing water. In this pipe P, I've got pipe insertions A and B. These insertions, although same in width, are different in length, with pipe B inserted deeper into the pipe P.
Now my question is, what will be the pressure out of pipes A and B, if water is at level L1, at Level L2 and if the pipe P is completely filled with water?
Also will the pressure change if the width of pipes A and B are changed?
The pipe P is approximately 8 inches in diameter. I'm not looking for any exact numbers, just the relation. If there is a certain topic of fluids that I'm missing, then kindly direct me in that direction.
I suppose at some point, Bernoulli's theorem might be applied, but I can't figure how. I've also looked up capillary action and venturi meter pipes, but still I couldn't apply them to my situation.
Any help is highly appreciated. Thanks in advance.