$1.$ Consider a microfluidic channel filled with water. You can make the assumption that the Ohm's law analogy applies to the particular section of the device under consideration for this problem.

a$.)$ What is the fluidic analogy to voltage, or potential, in the fluidic Ohm's law equation? What is the fluidic analogy to current?

b$.)$ Consider a section of a microfluidic device where the flow splits into $3$ streams. Assuming that the cross$-$sectional area of the channels is the same in the sections before and after the split, what happens to the overall fluidic resistance at the split $($i$.$e$.$ does it increase, decrease, or stay the same$)?$ Briefly explain your answer.

c$.)$ Suppose that you would like to revise the design of a particular section in a microfluidic device to decrease the fluidic resistance in that section $($which would make the flow rate increase$).$ Without changing the type of fluid that you use, name two variables that you could change to decrease the resistance. How would each variable have to change $($i$.$e$.$ would it need to increase or decrease$)$ in order to decrease the overall resistance of that section of channel?