1. The problem statement, all variables and given/known data I have a square conducting loop of size L that contains two identical lightbulbs 1 and 2. The magnetic field that goes into the page varies B(t) = a*t + b. Lightbulbs have resistance of R0 Here is a question and the sample response. Disregard the part of the question that starts with the words "Now" and ends with "removed." My question is why the resistances in the two loops are considered to be halved. If anyone could explain why that to me, that would be great! 2. Relevant equations R = resistivity * length /cross sectional area 3. The attempt at a solution OK. by the attached formula above, all I do is look at the length of each loop. Initially I have a square loop with no wire in the center. Thus the total loop length is 4L Then, I have a square loop and I add a wire in the center. Considering each half-loop, I have two sides of length L + two sides of length L/2, so I have total length of 3L not 2L. Thus, the resistance is not cut in half by the formula, or so it seems. Any input is appreciated, and thanks in advance.