An eagle is flying around and its velocity v as a function of time t is given in the graph below where rightwards is the positive velocity direction. What is the eagle's displacement from t=1 to t=4 seconds?

The correct answer is waves

Current supplied to consumers from generating plants like coal power plant, nuclear power plant, geothermal and others are in form of alternating current instead of direct current because it can be transported easily in a long distance. also, the alternating current has a wide range of frequency and the amount or energy can be increased or decreased.