PPT-Phys 102 – Lecture 13 Motional EMF & Lenz’ law

1 Physics 102 recently Lecture 13 motional EMF amp Lenz law Lecture 14 Faradays law of induction Lecture 15 electromagnetic waves Basic principles of magnetism. Law. Sections. . 23-1 -- 23-4. Physics 1161: . . Lecture 12. Changing Magnetic Fields create Electric Fields. Faraday’s Law. Key to EVERYTHING in E+M. Generating electricity. Microphones, Speakers and MP3 Players. September 2013. R.K. . Bhatnagar. Advisor(Technology), DoT. +91-9868133450. bhatnagarrk@gmail.com. bhatnagarrk@gmail.com; +91-9868133450. Growing Tele-Density. Unprecedented growth in the communication sector in recent years, . Electrodynamics. Prof. Hugo . Beauchemin. 1. Introduction. The strategy adopted to reveal the structure of E&M was to:. Start from . a concrete . experimental setup to infer uniformities . about. Physics 2415 Lecture 20. Michael Fowler, . UVa. Today’s Topics. Faraday’s Law of Induction. Electric Generators. Eddy Currents. Electric Motors. Transformers. Magnetic Flux through a Loop. Recall Gauss’ theorem related flux of electric field through an area enclosing a volume to the charge inside.. An increasing magnetic field induces a negative . emf. A decreasing magnetic field induces a positive . emf. A magnetic field that alternates by increasing and decreasing causes current to move back and forth. Sensors. (. always incomplete. ). adapted from T. Murphy’s lectures. Sensing Categories. Voltage. starting easy: analog in. Distance. acoustic or light. Speed. hard; usu. via distance. Acceleration. LCD Text Display. Keypads and Time Slicing. Interrupts. adapted from . T. Murphy’s . lectures. 2×16 LCD . Typically 5×8 dots per character. Note 16 pins: indicator of common interface. Phys 124: Lecture 4. g. eraint.lewis@sydney.edu.au. PHYS 1902. Chapter 29 . Electromagnetic Induction. . Electromagnetic . induction. Main idea:. a . time-varying. magnetic field can act as a source of the electric field. Abandonment/Destruction - Criteria. Property may be abandoned or destroyed when an authorized agency official has made a written determination that:. Property has no commercial value. Cost of care, handling, and sales prep would exceed expected sales proceeds. 1. Physics 102 lectures on light. Lecture 15 – EM waves. Lecture 16 – Polarization. Lecture 22 & 23 – Interference & diffraction. Lecture . 17 . – . Introduction to ray optics. Lecture . 1. Today we will.... Apply concepts from ray optics & lenses. Simple optical instruments – the camera & the eye. Learn about the human eye. Accommodation. Myopia, . hyperopia. , and corrective lenses. 1. Today we will.... Learn how combinations of lenses form images. Thin lens equation & magnification. Learn about the compound microscope. Eyepiece & objective . Total magnification. Learn about limits to resolution. Outline. Magnetic Flux and Flux Linkage. Inductance. Stored Energy in the Magnetic Fields of an Inductor. Faraday. ’. s Law and Induced Electromotive Force (. emf. ). Examples of Faraday. ’. s Law. 1. Today we will.... Learn about the . electric potential energy. Relate it to . work. Ex: charge in uniform electric field, point charges. Apply these concepts. Ex: electron microscope, assembly of point charges, dipole .