Hi there, I'm a student in high school. I'm quite new to the forum. Please forgive my mistakes. The problem statement, all variables and given/known data My question is related to electricity, more specifically the factors affecting resistance in a wire. I know that resistance is inversely proportional to the cross-sectional area of the wire. Does the number of wires represent the cross-sectional area of the wire? Relevant equations The circuit diagram is in the attachment. I came across an experiment which describes that by changing the number of wires (ie. changing the number of eureka wires), we actually change its cross-sectional area. The attempt at a solution However, doesn't adding the number of wires make it become a parallel circuit?￼ Help to clarify please?