Читать книгу The ESD Control Program Handbook - Jeremy M. Smallwood - Страница 31
1.6 Power and Energy
ОглавлениеEnergy is the ability to do work. Physics recognizes many types of energy – heat, light, gravitational, mechanical, and of course electrical.
Mechanical energy expended is the product of force and the distance moved. If a force qE is applied to move a charge q over a distance s between points A and B, the work done, WAB, is
Energy (work) expended, W, is also the product of power P and the time duration t that the power is applied.
The electrical power expended is the product of voltage V and current flowing I.
So, the electrical energy expended is