magnetic force on a straight conductor of uniform cross section and length error converting from mathml to accessible text. in a uniform magnetic field b with rightwards harpoon with barb upwards on top is error converting from mathml to accessible text., where error converting from mathml to accessible text. is a vector directed in the direction of the current with magnitude error converting from mathml to accessible text.. magnetic force on a differential length error converting from mathml to accessible text.of a conductor of uniform cross section in a uniform magnetic field b with rightwards harpoon with barb upwards on top is error converting from mathml to accessible text., where error converting from mathml to accessible text. is a vector with magnitude error converting from mathml to accessible text. directed in the direction of the current. magnetic force on a non-straight conductor of uniform cross section in a uniform magnetic field b with rightwards harpoon with barb upwards on top is given by the line integral error converting from mathml to accessible text., where error converting from mathml to accessible text. is a vector with magnitude error converting from mathml to accessible text. directed in the direction of the current. total magnetic force on a closed loop of a conductor of uniform cross section in a uniform magnetic field b with rightwards harpoon with barb upwards on top is zero, i.e. the line integral error converting from mathml to accessible text., where error converting from mathml to accessible text. is a vector with magnitude error converting from mathml to accessible text. directed in the direction of the current. total magnetic torque on a plane closed loop of a conductor of uniform cross section in a uniform magnetic field b with rightwards harpoon with barb upwards on top may or may not be zero, depending on the orientation of the loop with respect to the magnetic field. total magnetic torque on a straight conductor of uniform cross section in a uniform magnetic field b with rightwards harpoon with barb upwards on top may or may not be zero, depending on the orientation of the conductor with respect to the magnetic field.