class 10th Physics Electricity important points
class 10th Physics Electricity important points https://cbsenotesallsub.blogspot.com/2023/12/class 10th physics Electricity important points.html class 10th Physics by Daksh amit sir https://youtube.com/playlist?list=PLnihZCE1Xsyj75eaKk9xpE8-BFCfI1n4i&si=yA1TU7jpJAJped2B ch- Electricity Charge charge = Number of electron x e Q = ne n= q/e where Q= charge n = number of electrons e = 1.6 x 10 to the power mines 19 SI unit of charge is couloumb. 1 coulomb charge have 6.25x10 to the power 18 electrons Like charge always repel to each other. Unlike charge always attract to each other. Those substances by which electricity can flow are known as conductors Eg Silver, Copper, Aluminum, Nichrome, Graphite, Mercury, Manganin wet wood etc . Those Substances by which electricity can not flow are called insulators Eg sulpher,cotton, air, paper ,mica, bakelite,polythene ,plastic, dry wood etc The presence of free electrons in a metals make it a conductor There a