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Maxwell\u27s Fourth Equation: the Ampere\u27s Law
No full textThe original Ampere\u27s Law indicated the total magnetic field intensity along a closed loop is equal to the current enclosed. It was Dr. James Clerk Maxwell who introduced the missing term which was the rate of change of electric flux which is also known as the displacement current. As shown in the video of Faraday\u27s Law and the Point form of Maxwell\u27s Equations, the full Ampere\u27s Law says the total magnetic flux along a losed loop is equal to the conduction and displacement currents. In this video Dr. Maxworth uses the original Ampere\u27s Law to derive the inductance of a coaxial cable. The displacement current introduced by Maxwell, showed that a time varying electric field can create a time-varying magnetic field. Combining all of these four equations, comes the electromangetic fields, where a time-varying electric field creates a time-varying magnetic field, and in-turn a time-varying magnetic field creates a time-varying electric field, overall creating a propagating electromagnetic field. In the worksheet, you can observe different modes of a propagating electromagnetic fields inside a rectangular waveguide.https://digitalcommons.usm.maine.edu/oer_engineering_maxworth_emfields/1004/thumbnail.jp
Rainbow\u27s Doom Land
No full textCreated by a 5th grade student from Fiddlehead School of Arts and Sciences in Gray.https://digitalcommons.usm.maine.edu/mapmaking-contest-2025/1304/thumbnail.jp
Nebula Isle
No full textCreated by a 6th grade student from York Middle School in York.https://digitalcommons.usm.maine.edu/mapmaking-contest-2025/1313/thumbnail.jp
Rose Island
No full textCreated by a 5th grade student from Great Salt Bay School in Newcastle.https://digitalcommons.usm.maine.edu/mapmaking-contest-2025/1316/thumbnail.jp
Soccer Island
No full textCreated by a 4th grade student from Marshwood Great Works School in South Berwick.https://digitalcommons.usm.maine.edu/mapmaking-contest-2025/1334/thumbnail.jp
Palace Island
No full textCreated by a 4th grade student from Harriet Beecher Stowe Elem in Brunswick.https://digitalcommons.usm.maine.edu/mapmaking-contest-2025/1024/thumbnail.jp
Parrot Island
No full textCreated by a 4th grade student from Portland.https://digitalcommons.usm.maine.edu/mapmaking-contest-2025/1029/thumbnail.jp
The Island of Sunglasses
No full textCreated by a 4th grade student from Narragansett Elementary in Gorham.https://digitalcommons.usm.maine.edu/mapmaking-contest-2025/1035/thumbnail.jp
Candy Island
No full textCreated by a 4th grade student from Narragansett Elementary in Gorham.https://digitalcommons.usm.maine.edu/mapmaking-contest-2025/1036/thumbnail.jp
Stephen King\u27s Maine
No full textCreated by a 6th grade student from Breakwater School in Portland.https://digitalcommons.usm.maine.edu/mapmaking-contest-2025/1043/thumbnail.jp