The best electrical training tool available! This extraordinary book combines a series of volumes designed specifically to teach electricity. -- Series is logically organized to fit the learning process -- Specific volumes cover a given area but also prepare readers for ensuing sectionsThe more loops there are, the stronger the magnetic field becomes. If the coil is compressed tightly, the fields would join still more to produce a still stronger electromagnet. , Direction ol current A close-wound solenoid will create a strongeranbsp;...