Most broken toes heal well, usually within four to six weeks. Less commonly, depending on the precise location and severity of the injury, a broken toe may become infected or be more vulnerable to osteoarthritis in the future.
A permanent magnet generator is a device that converts mechanical energy to electrical energy. In this device the rotor windings have been replaced with permanent magnets.These devices do not require a separate DC supply for the excitation circuit or do they have slip rings and contact brushes.he demand for these devices is increasing day by day. With the increasing cost of electricity people are looking for an alternate source of energy and the permanent magnet generator perfectly fits in that place. These devices do not use any environmental resources to produce energy and thus are environment friendly.
Homopolar Motors. The permanent magnet in the animation (at left) produces a magnetic field B that is vertically upwards through the conducting disk. The cell provides current that flows through one brush to the central shaft, then outwards to the right towards the brush on the rim.hereas the homopolar motor converts electrical energy (supplied by the cell) into mechanical energy, the homopolar generator does the reverse: we provide mechanical energy to turn the disk and obtain an emf and (if a current path exists) an electric current.