Phase in RLC

Motivation

Physical phenomena, during which any physical quantity repeatedly changes, is called oscillations. If those changes are regular in time, we speak about periodical oscillations, and if the changes show harmonic character, we speak about harmonic oscillations. According to the character of oscillations we speak e.g. about mechanical, electrical or chemical oscillations. Speaking about electrical oscillations it may be changes of electric field strength, or magnetic induction, or changes of electrical voltage or current.