Moving magnetic fields pull and push electrons Metals such as copper and aluminum have electrons that are loosely held Moving a magnet around a coil of wire,
What is a magnetic field? A magnetic field is an invisible force field created by a magnet which exists all around it The magnetic field itself is The magnetic field is described mathematically as a vector field This vector field can be plotted directly as a set of many vectors drawn on a grid Each
ฝาก 5 รับ 100 ล่าสุด The Earth's magnetic field is created by electric currents generated by the rotating ironnickel core Its magnetic moment is ×1022Am2 The actual magnetic The shape of the magnetic field depends on the shape of the conductor When the current travels through a wire the field is circular The field is strongest
