Electromagnetism Forum

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Undergrad Two magnetic fields interacting in single core?

  • Salvador
  • · Replies 6 ·
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6

Graduate Vibrational frequency of electrons in atoms

  • desta41
  • · Replies 10 ·
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10

High School Does loud voice mean high frequency?

  • avito009
  • · Replies 9 ·
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9

Graduate Mathematical proof of the spherical electron?

  • Quandemonitum
  • · Replies 1 ·
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1

Undergrad What is source of base current in transistor?

  • goodphy
  • · Replies 4 ·
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4

Graduate Inductor response to applied voltage

  • VantagePoint72
  • · Replies 22 ·
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22

Graduate Is the energy inside an electron-orbital vibrational energy?

  • desta41
  • · Replies 3 ·
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3

High School Electron Rotation: Energy Source for Atom Motion

  • Venkatesh S K
  • · Replies 3 ·
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3

Graduate Can Electrons Pass Through Fiber Optic Cables Like Light Waves?

  • |3E|\|
  • · Replies 1 ·
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1

Graduate Electromagnetism: Electric Potential Under a Gauge

  • stedwards
  • · Replies 20 ·
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20

Graduate Linear Charge Distribution on a Needle?

  • TheDemx27
  • · Replies 3 ·
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3

Undergrad Pendulum & Magnet: Explaining Theory of Equilibrium Effect

  • ZangZeyu
  • · Replies 1 ·
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1

High School Why is the dipole moment directed from negative to positive?

  • Roxy SCarlet
  • · Replies 2 ·
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2

Graduate Electromagnetism: Magnetic Field, change in permeability

  • Helmholtzerton
  • · Replies 3 ·
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3

Undergrad Induced voltage and magnetic force

  • Ronnu
  • · Replies 3 ·
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3

Undergrad Question for Kirchhoff's current law for RC circuit

  • goodphy
  • · Replies 5 ·
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5

Undergrad Relationship between Electric Field and Potentential

  • spencerthought
  • · Replies 2 ·
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2

Undergrad Can small magnetic fields on Mars repel deadly radiation?

  • Alex299792458
  • · Replies 1 ·
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1

Undergrad Lorentz force in motor other than homopolar

  • Aaron380
  • · Replies 1 ·
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1

Graduate Flux linkage in inductance calculation for single wire.

  • goodphy
  • · Replies 6 ·
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6

Undergrad How can the electric field formula for a parallel plate capacitor be derived?

  • Fluxxx
  • · Replies 1 ·
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1

Undergrad What is the strongest magnetic field a human could survive?

  • serp777
  • · Replies 7 ·
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7

Undergrad Electric Current: Present or Not?

  • Razin Shaikh
  • · Replies 7 ·
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7

Graduate Integral form of Maxwell equations.

  • space-time
  • · Replies 3 ·
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3

Graduate Induced Electric Field inside Faraday Cage

  • TESL@
  • · Replies 7 ·
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7

High School Can electrons lose their charge?

  • markwalker
  • · Replies 2 ·
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2

Graduate Excitation of electrons by electromagnetic source

  • Northprairieman
  • · Replies 3 ·
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3

Graduate Query about induced voltage and open-circuit current

  • Ohmer
  • · Replies 2 ·
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2

Undergrad Current at a Junction: Does Current Density Change?

  • erisedk
  • · Replies 1 ·
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1

High School What pushes the EM waves in forward direction?

  • Giteshwar
  • · Replies 46 ·
2
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46

Undergrad Question about forces due to magnetism

  • DCN
  • · Replies 6 ·
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6

Undergrad Electric field within conductor

  • Fluxxx
  • · Replies 2 ·
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2

Undergrad How much heat/friction can small magnets really make?

  • Infinityze
  • · Replies 15 ·
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15

Undergrad Why does a stationary magnet cause plasma to spin ?

  • CyanGrinMonk
  • · Replies 13 ·
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13

Undergrad Natural Frequencies and Vibration Amplitudes of Object A

  • Tam Le
  • · Replies 3 ·
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3

Graduate Non-classically, do magnetic fields do work?

  • Nate Wellington
  • · Replies 2 ·
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2

Undergrad Ampere's law and magnetic circuit

  • kelvin490
  • · Replies 15 ·
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15

Undergrad Why is Faraday's law written with E and B instead of D and H?

  • Backdraft
  • · Replies 14 ·
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14

Graduate How to show laminations minimizes eddy current?

  • kelvin490
  • · Replies 23 ·
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23

Graduate How Does Increasing Core Permeability Affect an RL Circuit's Performance?

  • cnh1995
  • · Replies 1 ·
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1

High School Gravitational & Electrostatic Force: Why They Attract/Repel

  • Sagar Singh
  • · Replies 3 ·
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3

Graduate How can I write out the full equation for the Electroweak Force?

  • Holmesianman
  • · Replies 1 ·
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1

Undergrad Electronics cabinet cooling system

  • dhaval trivedi
  • · Replies 1 ·
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1

Undergrad How to Create a Magnetic Field for Seed Exposure?

  • physics145
  • · Replies 1 ·
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1

High School Distance to which magnets start attracting each other

  • Daniel3AL
  • · Replies 1 ·
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1

Undergrad Formula for torque on a coil in a magnetic field

  • Alettix
  • · Replies 17 ·
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17

Graduate Electric field needed to excite electrons to conduction band

  • Northprairieman
  • · Replies 5 ·
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5

High School Fleming's Left and Right Hand Rules

  • abbyD
  • · Replies 3 ·
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3

Undergrad Understanding Van de Graaff Questions: Explaining the Lack of Arc Formation

  • JFS321
  • · Replies 2 ·
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2

Graduate Calculating Magnetic Force on Ferrofluids Between Two Magnets

  • Flashlight21
  • · Replies 3 ·
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3

Graduate Why we calculate B of solenoid with this way?

  • theodoros.mihos
  • · Replies 3 ·
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3

Undergrad How can electromagnetic waves be transverse?

  • daniel rl3
  • · Replies 17 ·
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17

Graduate Electromagnetics: Reducing inductance of a wire loop

  • Subhash
  • · Replies 2 ·
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2

High School Help to make a solenoid/Electromagnet.

  • Shahryar
  • · Replies 1 ·
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1

Graduate Magnetic field of moving solenoid

  • BananaJose
  • · Replies 1 ·
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1

Undergrad No. of Electrons on Hard Disks: New vs Used

  • Vikas Goyal
  • · Replies 14 ·
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14

Undergrad EM Waves & Conservation of Energy

  • PhysicsIgnorant
  • · Replies 8 ·
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8

Undergrad Faraday's cage supposed to doesn't work for low frequency

  • Marcelo P
  • · Replies 1 ·
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1

Undergrad Calculating lifting force of a magnet

  • houlahound
  • · Replies 17 ·
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17

Undergrad What happens to current and voltage in a superconductor with zero resistance?

  • Sagar Singh
  • · Replies 8 ·
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8

Graduate Capacitance between two parallel wires not straight

  • sidhu3189
  • · Replies 3 ·
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3

Undergrad WiFi Signal Strength and Computer Orientation

  • Natanijel
  • · Replies 5 ·
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5

Graduate Acceleration of electron and radiation

  • Sagar Singh
  • · Replies 4 ·
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4

Graduate How many strings make up protons, neutrons, and electrons?

  • marshallmeyer1
  • · Replies 5 ·
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5

Undergrad Do All EM Waves Have a Sinusoidal Shape?

  • rmberwin
  • · Replies 10 ·
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10

Graduate Apparent paradox in no costants fields

  • andrea96
  • · Replies 20 ·
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20

Undergrad Graphite electrode destroyed in electrolysis

  • Samson4
  • · Replies 1 ·
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1

Graduate Magnetic Flux Through a Tilted Medium

  • magnetpedro
  • · Replies 9 ·
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9

Undergrad Can Induction Cooktops Produce Enough Heat to Cook Food Efficiently?

  • fysik
  • · Replies 7 ·
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7

High School Why is it important to use insulated wires in an electromagnet core?

  • MMS
  • · Replies 1 ·
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1

Undergrad Trigger the emission of light by an atomic electron

  • afcsimoes
  • · Replies 6 ·
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6

Graduate Is it possible to charge photons?

  • SeleneS
  • · Replies 16 ·
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16

Undergrad Frustrated about electrons and touching.

  • Lance Fernandes
  • · Replies 3 ·
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3

Undergrad Understanding Flux: Does it Have a Unit?

  • Brajesh kedia
  • · Replies 22 ·
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22

Lightest Strongest magnet I can buy

  • Left
  • · Replies 6 ·
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6

Undergrad Why is Flux Different for Spheres Compared to Disks in Gauss' Law?

  • Brajesh kedia
  • · Replies 28 ·
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28

Undergrad Faraday disk/ how is the magnetic flux changing?

  • John K
  • · Replies 1 ·
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1

Graduate Magnetic Moment of Point Charge

  • Invyz
  • · Replies 1 ·
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1

High School An Inexpensive Hobbyist Photoelectric Effect Lab Kit

  • EM_Guy
  • · Replies 5 ·
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5

High School Mysterious Phenomenon: Magnet & Light Bulb

  • Kostas Tzim
  • · Replies 18 ·
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18

Graduate Exception to Ampere-Maxwell circuital law

  • wprince007
  • · Replies 11 ·
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11

Can High Power Magnets Cause Physical Sensations in the Human Body?

  • HeavyFed
  • · Replies 9 ·
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9

Graduate Electromagnetic field on molecule

  • fysik
  • · Replies 8 ·
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8

Undergrad Change in Frequency/Wavelength in Doppler Effect

  • Samurai44
  • · Replies 2 ·
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2

High School What is the cause of Earth's magnetic field?

  • Rislam169
  • · Replies 1 ·
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1

Undergrad Why battery voltages add in series?

  • ColinD
  • · Replies 7 ·
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7

Undergrad Calculate movement of steel in magnetic field

  • jinnkraft
  • · Replies 9 ·
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9

Graduate Maxwell's distribution of velocities of molecules

  • Radhakrishnam
  • · Replies 13 ·
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13

Undergrad Is the Voltage the Only Factor in Electrical Shocks from Automotive Batteries?

  • Jacobim
  • · Replies 10 ·
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10

Graduate 2 Types Of Magnetic Potential Energy

  • sawer
  • · Replies 4 ·
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4

Undergrad Creating a Magnetic Quadrupole w/Earth Magnets

  • caters
  • · Replies 3 ·
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3

Undergrad A question about resonant frequency

  • jebii
  • · Replies 2 ·
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2

High School Direction of Current in a Sliding Bar

  • patrickbotros
  • · Replies 5 ·
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5

Undergrad Electrical mobility definition confusion

  • Wminus
  • · Replies 4 ·
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4

High School Understanding Charge Distribution: The Role of Conduction in Positive Charging

  • Brajesh kedia
  • · Replies 5 ·
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5

High School Why is Charge Directly Proportional to Electric Potential?

  • Brajesh kedia
  • · Replies 15 ·
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15

Undergrad Why is there an induced EMF in this case?

  • Salman72
  • · Replies 12 ·
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12

Graduate Splitting and combining EM waves & amplitude/intensity

  • Almeisan
  • · Replies 11 ·
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11

Graduate Need to learn some electrochemistry fast

  • ZetaOfThree
  • · Replies 2 ·
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2

Graduate Complex reflection and transmission coefficient of EM waves

  • OmeRogie
  • · Replies 1 ·
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1