SCI206 Final: SCI 206 Exam Review

• School: University of Waterloo
• Department: Science
• Course: SCI206
• Professor: Stefan Idziak

Document Summary

Science 206: the physics of how things work. An electric charge creates an electric field monopole: a changing electric field produces a magnetic field. A magnet creates a magnetic field dipole: a changing magnetic field produces an electric field. Cannot have an electric field that changes in time without a magnetic field that also changes in time. Antenna: moving charge accelerating up and down produces a polarized electric field: electric field is vertically polarized: only moves up and down. This creates a horizontally polarized magnetic field. Electromagnetic wave (made by antenna) can travel through anything (vacuum), does(cid:374)(cid:859)t (cid:374)eed a (cid:373)ediu(cid:373) Tank circuit: consists of an inductor and a capacitor = electronic oscillator. Inductor is a coil that creates a magnetic field stores energy. When electric current goes through the inductor (coil), a magnetic field is produced. 1: how much charge the capacitor can store depends on how big the plates are. A battery is needed to initially charge the capacitator.