...resiitantx: by partially closed VA!VC rapid the flow of water with a given pump acting. A resistance coil at any point in the circuit corresponds to a partially...again. The water simply surges, first in one direction, andthenin the other, so that a small object suspended in the water would not travel continuously around...

...kind, which pulsates regularly in magnitude, is called a " pulsating current." A very important kind of current for radio work is that known as " alternating...As a further case, let us suppose that an elastic partition E is arranged in the pipe (Fig. 5), so that no water can flow through or around it. If a...

...direction. It no sooner gets up speed in one direction than it is compelled to slow up and then get up speed in the opposite direction, and so on, over and over again. An object placed in the water will not travel around the pipe circuit, but simply oscillates back and...

...moved back and forth rapidly over a short distance, without traveling beyond certain limits. Lnder this impetus the water no sooner gets up speed in...simply oscillate back and forth over a short distance. The importance of the electric current lies in the fact that it is an energy current. A current of...