EECE 265 Chapter Notes - Chapter 2, 3, 6: Charles Wheatstone, Short Circuit, Capacitor

• School: UBC
• Department: Electrical and Computer Engineering
• Course: EECE 265
• Professor: S T T

Document Summary

V = i / g ; g = 1/r. Short circuit: at 0 resistance, conductance is infinity making voltage = 0. Ope(cid:374) (cid:272)ir(cid:272)uit: 0 (cid:272)o(cid:374)du(cid:272)ta(cid:374)(cid:272)e, (cid:449)ires are (cid:374)ot (cid:272)o(cid:374)(cid:374)e(cid:272)ted lol . Power is instantaneous; but the equations are used in a way to reflect long term steady state. Wheatstone bridge measures resistance; adjusts r3 until current in g is 0 so a simple balanced relationship can be used to find rx: (cid:883)(cid:885)=(cid:884) True node 3+ elements connected to it (incl. interconnection wires) Binary node 2 elements connected to it. Branch connection between 2 nodes (incl. all elements in it) Loop closed circuit path; cross true nodes only once. Kcl: conservation of current; sum of entered current = sum of exited current: node or closed boundary. Kvl: sum of voltage drops in a loop is zero. Wye-delta transformation simplifying triangular (delta) shaped resistor combination. Nodal analysis to fi(cid:374)d (cid:374)ode (cid:448)oltages; (cid:271)ased o(cid:374) oh(cid:373)"s a(cid:374)d kcl.