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--- electricity [2022/10/08 02:55] – [Direct Current (DC)] jhagstrand
+++ electricity [2023/01/11 08:11] (current) – external edit 127.0.0.1
@@ Line 497: / Line 497: @@
 N = Number of turns
 e = EMF
+flux -> change in flux -> EMF\\
+https://youtu.be/Y2XvIofbwpc
@@ Line 862: / Line 866: @@
     * copper: positive electrode
     * saltwater: electrolite
+  * 1861 Maxwell presents his equations (right-hand thumb rule?)
   * 1897 J.J. Thomson discovers the electron, described it as a negatively charged particle floating in a sea of positive charge, like plums in a pudding, the "plum pudding model"
   * 1909 Rutherford discovers the nucleus in the gold foil experiments and develops the planetary model
   * 1913 Niels Bohr discovers the specific energy levels of electrons in the atom
+  * 1940 US Navy begins training electronics engineers using the electron current.
   * 1945 John Ambrose Fleming dies
@@ Line 871: / Line 877: @@
 two terminals marked + and -\\
 Is that true?  Does the - terminal really have a superfluence of electrons?
+annode, cathode
+chemical reactions:
+  * oxidation = loss of electrons
+  * reduction = gain of electrons
+anion - has gained an electron, negative charge
+cation - has lost an electron, positive charge
+cathode - reduction occurs,
+anode - oxidation occurs, anions give off electrons, negative charge
+species?
+electrons flow from anode to cathode, from oxidation half to reduction half
+inside the battery, electrons flow from positive to negative inside the battery
+outside the battery, from negative to positive
+flow is reversed by a battery charger, something with a bigger voltage
+, AAA, AA, C, D dry cell
+^ description    ^ anode (-)    ^ cathode (+)          ^ electrolyte                        ^
+| zinc-carbon    | zinc         | manganese            | ammonium chloride or zinc chloride |
+| alkaline       | zinc powder  | manganese dioxide    | potassium hydroxide (alkaline)     |
+| lithium-ion    | carbon, graphite | lithium metal    | aquaeous salts                     |
+| li-ion polymer | carbon, graphite | lithium cobalt oxide | polymer                        |
+| lead-acid      | lead dioxide | metallic lead        | sulfuric acid                      |
+The electrolyte helps transport ions between positive and negative electrodes.
 ==== Alternating Current (AC) ====
+===== Magnetic Field =====
+==== Calculate and Plot a Magnetic Field ====
+Numerical Error with Simulation...\\
+https://physics.stackexchange.com/questions/139479/numerical-error-with-simulation-of-electric-charge-in-homogeneous-magnetic-field
+Mathematical Model of Magnetic Field Lines\\
+https://spacemath.gsfc.nasa.gov/earth/9Page23.pdf