1. A conductor of effective length 0.5 m is placed at right angles to a magnetic field of density 0.45 T. Calculate the force exerted on the conductor if it carries a current of 5 A.
2. A conductor of effective length 1.2 m is placed inside a magnetic field of density 250 mT. Determine the value of current flowing through the conductor, if a force of 0.75 N is exerted on the conductor.