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+===== Magnetism, electromagnetism, theory, materials, devices, sensors... =====
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+/ [[/wiki/about Encyclopedia Magnetica|About us]][[wiki/about_encyclopedia_magnetica#statistics|?]] /
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+**[ Basic definitions ]**
+  * [[Magnetism]] ([[types of magnetism]])
+  * [[Electromagnetism]]
+  * [[Magnetic field]]
+    * [[Magnetic flux density|Flux density]] //B//
+    * [[Magnetic field strength|Field strength]] //H//
+    * [[Confusion between B and H]]
+    * [[Magnetisation]] //M//
+    * [[Magnetic polarisation|Polarisation]] //J//
+  * [[Magnetic polarity]]
+    * [[Magnetic poles]] ([[Magnetic monopole|monopole]], [[Magnetic dipole moment|dipole]], [[Magnetic dipole moment|moment]])
+  * [[Magnetic properties]]
+    * [[Types of magnetic susceptibility|Susceptibility]] //χ// or //κ//
+    * [[Types of magnetic permeability|Permeability]] //μ// ([[magnetic permeability of vacuum|vacuum]], [[relative magnetic permeability|relative]], [[initial magnetic permeability|initial]], [[complex magnetic permeability|complex]])
+    * [[Hysteresis loop]] ([[B-H loop]], [[J-H loop]], [[M-H loop]])
+    * [[Coercivity]] //H<sub>c</sub>// (//<sub>B</sub>H<sub>c</sub>// and //<sub>J</sub>H<sub>c</sub>//)
+    * [[Remanence]] //B<sub>r</sub>//
+    * [[Magnetic saturation]] (//M<sub>sat</sub>//, //J<sub>sat</sub>//, //B<sub>sat</sub>//)
+    * [[Demagnetisation]] ([[degaussing]])
+    * [[Magnetostriction]] //λ//
+    * [[Barkhausen noise]]
+    * [[Magnetic domain]] ([[magnetic domain wall|domain wall]])
+  * [[History of electromagnetism]]
+</WRAP>
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+**[ Magnetic materials ]**
+  * **[[database|DATABASE of magnetic materials]]** :!:
+  * [[magnetic_materials#periodic_table|Periodic table of elements]]
+  * [[Magnetic materials]] ([[Non-magnetic materials|non-magnetic]])
+  * [[Soft magnetic materials]]
+    * [[Electrical steels]]
+      * [[Non-oriented electrical steels|Non-oriented]] (NO)
+      * [[Grain-oriented]] ([[CGO]], [[Hi-B]], [[DGO]])
+      * [[Electrical foils]]
+    * [[Soft ferrites]]
+    * [[NiFe alloys]]
+    * [[CoFe alloys]]
+    * [[Amorphous ribbons]]
+    * [[Nanocrystalline ribbons]]
+    * [[Powder materials]]
+  * [[Hard magnetic materials]] (magnets)
+    * [[NdFeB]] (neodymium)
+    * [[SmCo]] (samarium)
+    * [[Hard ferrites]]
+    * [[Alnico]]
+  * [[Semi-hard magnetic materials]]
+</WRAP>
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+**[ Calculators ]**
+  * **[[Calculators|All calculators]]** :!:
+  * [[Conversion between CGS or Gaussian to SI magnetic units|Convert between CGS and SI units]] :!:
+  * [[calculator/effective_permeability_from_air_gap|Effective permeability]] //μ<sub>eff</sub>//
+  * [[calculator/skin_depth|Skin depth]] ([[calculator/skin_depth|skin effect]])
+  * [[calculator/proximity_effect_from_dowell_curves|Proximity loss (Dowell curves)]] //R<sub>ac</sub>//
+  * [[calculator/magnetic_coupling_coefficient|Magnetic coupling coefficient]] //k//
+  * Calculator of magnetic field of:
+    * [[calculator/current_loop_axis|Round current loop]]
+    * [[calculator/current_loop_rectangular_axis|Rectangular current loop]]
+    * [[calculator/magnetic_field_of_straight_conductor|Straight round conductor]]
+    * [[calculator/solenoid_thin|Thin solenoid]]
+    * [[calculator/solenoid_thick|Thick solenoid]]
+    * [[calculator/solenoid_rectangular|Rectangular solenoid]]
+    * [[calculator/helmholtz_coil|Helmholtz coil]]
+    * magnet ([[calculator/magnet_rectangular|rectangular]], [[calculator/magnet_cylindrical|cylindrical]])
+  * [[calculator/thermal_resistance_of_ferrite_cores|Thermal resistance of ferrite cores]] //R<sub>th</sub>//
+  * [[calculator/power_loss_from_volume_to_weight|Power loss between volume and mass]]
+  * [[calculator/inductance_of_gapped_inductor|Inductance of a gapped inductor]] //L//
+  * [[calculator/induction_heating_power|Induction heating power]]
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+{{page>insert/paypal}}
+=== ===
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+**[ Magnetic circuits ]**
+  * [[Magnetic circuit]]
+  * [[Magnetic core]]
+  * [[Air gap]]
+  * [[Fringing flux]]
+  * [[Leakage flux]]
+  * [[Laminations]]
+  * [[Insulation]]
+  * [[Wire]]
+  * [[Strand]]
+  * [[Coil]]
+  * [[Winding]] ([[primary winding|primary]], [[secondary winding|secondary]], [[tertiary winding|tertiary]])
+  * [[Magnetic path length]]
+    * [[Effective path length]]
+  * [[Cross-sectional area]]
+    * [[Effective area]]
+</WRAP>
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+**[ Magnetic losses ]**
+  * [[Efficiency]]
+  * [[Power loss]]
+  * [[Energy loss]]
+  * [[Hysteresis loss]]
+  * [[Eddy current loss]]
+  * [[Excess loss]] (additional / anomalous)
+  * [[Proximity loss]]
+    * [[Dowell's curves]]
+  * [[Core loss]] (or iron loss]
+  * [[Copper loss]] (or winding loss)
+  * [[Windage loss]]
+  * [[Mechanical loss]]
+  * [[Transition loss]]
+  * [[Switching loss]]
+  * [[Resistive loss]] (Joule heating)
+</WRAP>
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+**[ Electromagnetic fields ]**
+  * [[Field]]
+  * [[Magnetostatic field]]
+  * [[Magnetic field]]
+  * [[Electrostatic field]]
+  * [[Electric field]]
+  * [[Electromagnetic field]]
+  * [[Radiation field]]
+  * [[Acceleration field]]
+  * [[Thermal field]]
+  * [[Maxwell equations|Maxwell's equations]]
+    * [[Faraday's law of induction]]
+    * [[Ampere-Maxwell circuital law]]
+    * [[Gauss's law for magnetism]]
+    * [[Gauss's law for electrostatics]]
+    * [[Biot-Savart law]]
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+{{page>insert/link_to_us}}
+=== ===
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+**[ Coils and Windings ]**
+  * [[list_of_types_of_windings_and_coils|Winding]] ([[coil]])
+    * [[Primary winding]]
+    * [[Secondary winding]]
+    * [[Tertiary winding]]
+  * [[Bobbin]]
+  * [[Winding machine]] ([[linear winding machine|linear]], [[toroidal winding machine|toroidal]])
+  * [[Winding wire]]
+    * [[Enamelled wire]]
+    * [[Litz wire]]
+    * [[CTC]] / [[Roebel cable]]
+  * [[Strand]]
+  * [[Bifilar winding]]
+  * [[Ayrton-Perry winding]]
+  * [[Non-inductive winding]]
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+**[ Inductors ]**
+  * [[list_of_inductor_types|Inductor]]
+  * [[Choke]]
+    * [[AC choke]]
+    * [[DC choke]]
+  * [[Common-mode choke]]
+  * [[Coupled inductor]]
+  * [[Air-cored inductor]]
+  * [[Flyback inductor]]
+  * [[Variable inductor]]
+  * [[Polarity of inductors]]
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+**[ Transformers ]**
+  * [[list_of_transformer_types|Transformer]]
+  * [[Autotransformer]] (Variac)
+  * [[Flyback transformer]]
+  * [[Current transformer]] (CT)
+  * [[Voltage transformer]] (VT)
+  * [[Rotational transformer]]
+  * [[In-rush current]]
+  * [[Laminations]]
+</WRAP>
+=== ===
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+**[ Devices ]**
+  * [[Coil]] ([[solenoid]])
+  * [[Inductor]]
+  * [[Transformer]] ([[autotransformer]])
+  * [[Motor]]
+  * [[Linear motor]]
+  * [[Electromagnetic actuator]]
+  * [[Relay]]
+    * [[Reed relay]]
+  * [[Magnetic sensor]]
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+**[ Magnetic sensors ]**
+  * [[B-coil]] ([[induction coil]], [[search coil]])
+  * [[Needle-probe sensor]]
+  * [[H-coil]]
+  * [[Hall-effect sensor]]
+  * [[Fluxgate sensor]]
+  * [[Magnetoresistive sensor]]
+  * [[Magnetoelastic sensor]]
+  * [[Current sensor]]
+  * [[Rogowski coil]]
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+**[ Electromagnetic motors ]**
+  * [[DC motor]]
+  * [[Polyphase motor]]
+  * [[Induction motor]] (asynchronous)
+  * [[Synchronous motor]]
+  * [[Hysteresis motor]]
+  * [[Shaded-pole motor]]
+  * [[Switched-reluctance motor]]
+  * [[Permanent-magnet motor]]
+</WRAP>
+==== Editorial team and contributors ====
+  *  **[[user/stan_zurek|Stan Zurek]]**, Editor-in-Chief
+  * [[user/Krzysztof Chwastek]]
+  * [[user/Jeff Jones]]
+  * [[user/Branko Koprivica]]
+  * [[user/Jeanete Leicht]]
+  * Tom Taylor
+  * [[https://www.aalto.fi/en/people/anouar-belahcen|Prof. Anouar Belahcen]]