ELECTROSTATICS resistance ~electrostatics is the study of statics electrical charges PROPERTIES of electrical charges ~their are 2 types of charges *positive *negative ~smallest unit of negative charges is electron ~smallest unit of positive is proton #*electrical charges extract forces on each other,the force are mutual,equall and opposite by newtons 3rd law *like charges repair each other n unlike charges attract each other *# magnitude of mutual force b/n the charges is influenced by the two charges or the nucleus ~ electrical charges flow easly in electrical conductor n flow in difficulties in other material electrical insulator ~when electrical charges move they produce magnetic field ~electrical charges flow by peplation force n attraction force #* VOLTS are z si unit of potential RESISTANCE ~the form of electrical resistance measured in ohms Ʊ ~factors that affect resistance *shape of substance *types of material *temprature OHMS law on resistance V=IR. Or I=v/R or R=v/I R does not depend on V or I THE JOULES /J/ ~jouls is the si unit of energy THE WATT /W/ ~watt is the si unit of power P=W/T ~OHMS law of power in resistor *P=VI *p=I2R *P=v2/R
Posted on: Sat, 07 Sep 2013 04:20:56 +0000
Trending Topics
Recently Viewed Topics
© 2015