Question

Problem 1: A closed square conducting loop is formed from 40.0 [cm] of wire having a resistance of 0.10 [ohms]. The loop lies in the plane of the page. A uniform magnetic field with a strength of 0.50 [T] is pointing up, out of the plane of the page. Beginning at t = 0 [s], two opposite corners of the loop are pulled at a constant speed of 0.293 [m/s] in opposite directions. a) At what time does the area of the loop go to zero? b) Derive an expression for the current induced in the loop as a function of time while the loop is collapsing. Assume that the sides remain straight lines during the time of the collapse. c) Tabulate four of five non-zero values of the induced current. Plot the induced current versus time. ***Professor said plot must be linear.

Answer 1