Problem 3.293

A long straight wire carrying a current $I$ and a II-shaped conductor with sliding connector are located in the same plane as shown in Fig. 3.81. The connector of length $l$ and resistance $R$ slides to the right with a constant velocity $v$. Find the current induced in the loop as a function of separation $r$ between the connector and the straight wire. The resistance of the \PiI-shaped conductor and the selfind uctance of the loop are assumed to be negligible.