Three disks are spinning independently on the same axle without friction. their respective rotational inertias and angular speeds are i,ω (clockwise); 2i,3ω (counterclockwise); and 4i,ω/2 (clockwise). the disks then slide together and stick together, forming one piece with a single angular velocity. what will be the direction and the rate of rotation ωnet of the single piece? express your answer in terms of one or both of the variables i and ω and appropriate constants. use a minus sign for clockwise rotation.

I'll do it rn and then answer

You would need to take a picture so i can see

Ohm's law tells you that i = v/r where v is equivalent voltage and r is equivalent resistance of the circuit
since all circuits have the same voltage, your question is really asking which circuit has the lowest total resistance, since the lower the resistance, the higher the current
circuit a has a resistance of 5 ohms; circuit c is in series so has a resistance of 10 ohms; circuit b is in parallel and therefore has a resistance of 2.5 ohms (review your notes on adding resistances in parallel and series); therefore b has the highest current