PPT-AC Circuits II Physics 2415 Lecture 23

Michael Fowler UVa Todays Topics Review self and mutual induction LR Circuits LC Circuits Definition of SelfInductance For any shape conductor when the current changes there is an induced emf . Determine the resonant frequency a nd bandwidth of the given network using a sinusoidal response Equipment NI ELVIS Resistors 1 K Capacitors 1 F 001 F Inductors 33mH Theory A resonant circuit also called a tuned circ uit consists of an i nductor 1 Motivation Why is power dissipation so important Power dissipation considerations have become important not only from reliability point of view but they have assumed greater importance by the advent of portable battery driven devices like laptops c p730 - 735. Essential Questions. How does the wiring in a circuit change its ability to supply power to devices?. How do we represent physical circuit elements in schematic drawings?. Objective(s. ): . EE194. Brad Wheeler. Block Diagram. RF gain . N. oise reasons. Down-conversion. Easier to build low frequency circuits. Signal processing . M. ore gain, filtering. Digitization/demodulation. Extract the information. What we’re now learning:. Series Circuit. A . series circuit . has a single path for the current. Series Circuit. There is only one path for the electrons to flow. This means the . current must flow through all loads. Activator. Essential Question:. How are series and parallel circuits similar and different in how they transfer energy. ?. Standard:. S8P5b. . Demonstrate the advantages and disadvantages of series and parallel circuits and how they transfer energy. Activator. Essential Question:. How are series and parallel circuits similar and different in how they transfer energy. ?. Standard:. S8P5b. . Demonstrate the advantages and disadvantages of series and parallel circuits and how they transfer energy. Lecture 1. Michael Fowler. Basic Outline. The course has three main parts, each about a month: . Electrostatics.. Magnetism and Magnetic Induction.. Electromagnetic Waves.. We’ll cover some other waves, and optical phenomena, in the last few lectures. We’ll also cover DC and AC circuits in the course.. Michael Fowler, . UVa. Today’s Topics. Dimensions. Wave types: transverse and longitudinal. Wave velocity using dimensions. Harmonic waves. Dimensions. There are three fundamental units in mechanics: those of mass, length and time. . Michael Fowler, . UVa. Today’s Topics. Multi-slit interference. The diffraction grating: spectra. Waves and particles, more diffraction. Radio astronomy. Light Intensity Pattern from Two Slits. We have two equal-strength rays, phase shifted by. Michael Fowler, . UVa. Today’s Topics. Mention of AC. Semiconductors and superconductors. Battery . emf. , internal resistance. Series and parallel resistances. Kirchhoff’s rules. AC and DC. Batteries. Transistors, Cable Impedance. diode bridge. Lecture 8: Electronics. UCSD Physics 122. 2. Basic Circuit Analysis. What we won’t do:. common electronics-class things: RLC, filters, detailed analysis. Michael Fowler, . UVa. Today’s Topics. General form of Faraday’s Law. Self-Inductance. Mutual Inductance. Energy in a Magnetic Field. Faraday’s Law: General Form. A changing magnetic flux through a loop generates an emf around the loop which will drive a current. The emf can be written:. Interference I: Double Slit Physics 2415 Lecture 35 Michael Fowler, UVa Today’s Topics First: brief review of optical instruments Huygens’ principle and refraction Refraction in fiber optics and mirages Young’s double slit experiment Convex