PPT-AC Circuits I Physics 2415 Lecture 22

Michael Fowler UVa Todays Topics General form of Faradays Law SelfInductance Mutual Inductance Energy in a Magnetic Field Faradays 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. 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 N:2-3 / Series and Parallel Circuits. It’s a cool, clear night as you stroll by the harbor with your family. . The night is dark, but the waterfront is bright thanks to the thousands of twinkling white lights that outline the tall ships. . I. Circuits. A flow of electrons is called a current.. Symbol - I. Unit is Amperes or Amps (A). I = q/t . Current is amount of charge per time.. B. What is a circuit?. A circuit is any . closed loop. of Depth-Three and . Arithmetic Circuits with General Gates. Oded. . Goldreich. Weizmann Institute of Science. Based on Joint work with . Avi. . Wigderson. Original title. : . “On . the Size of Depth-Three Boolean Circuits for Computing . 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. Michael Fowler, . UVa. Today’s Topics. A bit more about mirrors…. Refraction. Lenses. Ray tracing to locate image. Concave Mirror Focusing Sunlight. This solar collector is really many small flat mirrors, but equivalent to a concave mirror focusing parallel rays to a point half way from the center of the mirror to its center of curvature.. 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. The wave equation. Energy and power of waves. Superposition. Standing waves as sums of traveling waves. Fourier series. Harmonic Waves. A simple harmonic wave has sinusoidal form:. 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. Michael Fowler, . UVa. Today’s Topics. Electric motors and galvanometers. Ratio of charge to mass for an electron. Hall Effect. Mass spectometry. Reviewing Essential Facts:. The force on an element of current in a wire in a magnetic field is:. Learn how to excel in AP Physics with this comprehensive guide. Explore essential concepts, study strategies, and resources to ace your AP Physics exam. 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