Writer of American National Anthem Francis Scott Key(1779-1843) Oh! thus be it ever. when freemen shall stand Between their loved homes and the war's desolation! Blest with victory and peace, may the heaven-rescued land Praise the Power that hath made and preserved us a nation
Announcements: Power Point Lecture Notes Available on BCMP200 Website For further reading Nucleic Acids: Structures, Properties, and Functions V.A. Bloomfield D. M. Crothers
I If f(t)=100 for 04.(a) Calculate v at t=T/4.(b) Find the average power delivered by this waveform to a 5Q2 resistor 3 Let v(t)=3-3 cos(100 t-40)+4 sin(200 T t-10)+2.5 cos 300 tt V Find: (a)the average value Var;(b)the rms value V;(c)the period T; (d)v(18ms)
1 If the voltage across a 5F capacitor is 2te -V, find the current and the power 2 In 5s, the voltage across a 40mF capacitor changes from 160v to 220V. Calculating the average current through the capacitor
65.1 Introduction 65.2 Primary Distribution System 65.3 Secondary Distribution System 65.4 Radial Distribution System 65.5 Secondary Networks 65.6 Load Characteristics George G. Karady
The readings of three watt-meters Ax =v an+lnx vBx=vbn+lnx vc=von+v Nx (UANia tUBvibB+Uvicdt+l(uN(ia tibB +ic)dt T Jo aNaA foBNLbB +Uvic)dt The sum of the average powers taking by the three-phase loads
The effective value of any periodic current is equal to the value of the direct current which flowing through a resistance R, delivers the same power to r as periodic current does
Ohm's law states that voltage across many types of conducting materials is directly proportional to the current flowing through the material. U= Ri or R= i R--resis tance()( linear resistor) The resistor is a passive element that cannot deliver power or store energy
