2. A conducting rod of mass M with negligible electrical resistance slides on a pair of frictionless, horizontal, parallel, conducting rails separated by a distance L. The two rails are connected by an electrical resistance of R. A uniform magnetic field B is directed vertically upward in the entire region. B. a. Looking from above, is the conventional current flowing ew or cew? b. Determine the EMF generated in the circuit. c. Find the force necessary to keep the rod moving at a constant speed.

2. A conducting rod of mass M with negligible electrical resistance slides on a pair of frictionless, horizontal, parallel, conducting rails separated by a distance L. The two rails are connected by an electrical resistance of R. A uniform magnetic field B is directed vertically upward in the entire region. B. a. Looking from above, is the conventional current flowing ew or cew? b. Determine the EMF generated in the circuit. c. Find the force necessary to keep the rod moving at a constant speed.