PHY 7B Lecture Notes - Lecture 3: Electric Potential Energy, Farad, Fluid Dynamics
Document Summary
Rseries = r1 + r2 + r3 + Battery going from - to + gives positive. Resistors have voltage drops (- i r) when going along the current. V = 0 around a complete loop. Power dissipation in circuits is the rate of change of electric potential energy. An important concept in science is linear transport which means that there is a linear relationship. From the first order differential equation dx dy = ky, where the first derivate of y is linearly proportional to y itself, we get solutions: y = y0e kt. The two graphs below will be used a lot for exponential decay problems. A simple circuit consist of a battery and a resistor (light bulb): New circuit element is capacitor which is made of two conductors (metal plates) and an insulator. Initially a capacitor has zero net charge q = 0c. Capacitors can store energy and they get charged once connected to a battery.
