Two parallel rails with negligible resistance are 1 00E 1m

Last updated: 6/9/2023

Two parallel rails with negligible resistance are 1 00E 1m apart and are connected by a 4 000 resistor The circuit also contains two metal rods having resistances of R 12 200 and R 20 000 siding along the rails see figure The rods are pulled away from the resistor at constant speeds v4 00m s and v2 00m s respectively A uniform magnetic field of magnitude 0 0100 is applied perpendicular to the plane of the rails Determine the current in the 4 00ohm resistor