电磁炮能利用一种强大的磁脉冲将弹丸加速到千米/秒级。即使一枚很小的弹丸,以这样的速度命中目标,也能释放大量的动能并引起极大的破坏。这样,火药或燃料问题没有了;弹丸也像石子一样,不复杂了。这种概念并不新鲜,半个世纪以来人们已研究试验过多次。电磁炮可以以几种方式建造,目前最引人注目的是轨导法;将弹丸及其磁舌置于两条导轨之间。当电流脉冲送到一条导轨上,再传到另一条导轨上时,能使导轨周围产生磁场,产生了洛仑兹力,作用于磁舌,加速弹丸。在美国陆军碧加丁尼兵工厂进行的研究试验 The gun can use a powerful magnetic pulse to accelerate the projectile to the kilometer / second level. Even a small projectile hitting a target at such a rate can release a great deal of kinetic energy and cause great damage. In this way, the problem of gunpowder or fuel is gone; the projectile is like a stone and is not complicated. This concept is not new and people have studied it many times over the past half century. Guns can be constructed in several ways, the most notable of which is the guide method; the projectile and its tongue are placed between two rails. When the current pulse to a rail, and then spread to another rail, the rail can produce a magnetic field around, resulting in Lorentz force, acting on the tongue, to accelerate the projectile. Research test conducted at the US Army BiGadinni Arsenal