1. An electric charge of 30 nC moves in a magnetic field of 20 T. The speed of the charge is 3.5 Mm/s and it makes an angle of 35 with the magnetic field. Find the magnetic face that acts on charge 2. A magnetic force of 2.5 x 10 N acts on a circular wire that carries a current. The wire is in a 35-mT magnetic field, and the axis of the wire loop makes an angle of 40 with the magnetic field. Determine the current in the wire if its length is 25 cm. 3. A circular piece of wire has a radius of 8.0 cm and 30 turns. The wire carries a current of 10.0 A and its axis makes an angle of 50 with a magnetic field of 500 G. Find the torque acting on the side