Electromagnetism Forum

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High School Where Are the Poles of a Flat Refrigerator Magnet?

  • overlook1977
  • · Replies 6 ·
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6

Graduate Gauss' law to calculate electric potential

  • DanielO_o
  • · Replies 1 ·
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1

High School Should the poles at the end of each magnet be similar?

  • arety33
  • · Replies 2 ·
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2

Undergrad Why Are Floating Circuits Considered Safe?

  • Nightmage82
  • · Replies 6 ·
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6

High School What is the relationship between electric charge and electrons?

  • kfa
  • · Replies 4 ·
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4

Graduate How is energy stored in an electric or magnetic field?

  • myself
  • · Replies 16 ·
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16

High School What make the magnet to be magnet with magnetic field?

  • scientist91
  • · Replies 23 ·
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23

High School Behavior of a cylindrical magnet

  • overlook1977
  • · Replies 1 ·
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1

Graduate Can Magnetic Forces Do Work on Charged Particles and Magnetic Dipoles?

  • da_willem
  • · Replies 6 ·
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6

Graduate Can a massive particle follow a straight path in a non-uniform electric field?

  • shakeel
  • · Replies 5 ·
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5

Graduate Theory about magnetic monopoles?

  • jostpuur
  • · Replies 1 ·
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1

Graduate Quicky on (div)B: No Magnetic Monopoles

  • robousy
  • · Replies 3 ·
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3

Undergrad Ring Magnets vs. Disk Magnets: Which Creates Stronger Eddy Currents?

  • robhlee
  • · Replies 3 ·
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3

High School What make the electrons to move in conductor with current?

  • scientist91
  • · Replies 36 ·
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36

Undergrad Induction Coils and/or Hertz Experiment

  • aku2590
  • · Replies 1 ·
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1

Undergrad Electric and magnetic waves orthogonal to each other?

  • proton
  • · Replies 7 ·
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7

High School How do you know if a particle is an electron/proton?

  • help908
  • · Replies 2 ·
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2

Undergrad Speed of electric potential in copper

  • Jdo300
  • · Replies 3 ·
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3

Undergrad Does Electron Movement Always Produce Detectable Electromagnetic Waves?

  • The_Thinker
  • · Replies 18 ·
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18

High School Simple NAND flip flop question

  • lampshade
  • · Replies 4 ·
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4

High School Circuit, One resistor, two paths

  • nealh149
  • · Replies 7 ·
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7

High School Electric Circuits: Voltage Distribution in Multiple Resistor Circuits

  • ||spoon||
  • · Replies 6 ·
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6

High School Why there must be time-varying magnet to induce current into conductor?

  • scientist91
  • · Replies 2 ·
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2

High School Calculating Voltage over Distance for Grill Igniter Projects

  • pas
  • · Replies 2 ·
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2

Graduate Magnetic force is a function of position?

  • neelakash
  • · Replies 3 ·
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3

Graduate Question about Maxwell's Equations

  • lugita15
  • · Replies 6 ·
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6

Undergrad Understanding Magnetic Shielding - Is This Correct?

  • Treborman
  • · Replies 2 ·
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2

High School Why the magnetic field is creating around electrons?

  • scientist91
  • · Replies 22 ·
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22

Undergrad Why doesn't direct current exhibit self-induction?

  • scientist91
  • · Replies 13 ·
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13

Graduate Mutual Electrostatic Energy Derivation.

  • MathematicalPhysicist
  • · Replies 2 ·
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2

Undergrad Does a copper plate affect mutual induction between two circular coils?

  • ragav
  • · Replies 2 ·
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2

Graduate Capacitor measurement and understanding

  • edmondng
  • · Replies 8 ·
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8

High School Identifying Magnetic Rods: Brain-Teaser Challenge

  • novo
  • · Replies 9 ·
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9

Undergrad The Physics of Dropping a Magnet Through a Copper Tube

  • robhlee
  • · Replies 2 ·
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2

Undergrad How can a layman visualize an electric field?

  • AJH
  • · Replies 16 ·
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16

Undergrad Is in the one-way current have selfinduction? and if yes why, if no why?

  • scientist91
  • · Replies 21 ·
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21

Undergrad Qquestion on a faraday's induction law problem

  • O.J.
  • · Replies 8 ·
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8

High School Why don't attracting charges/planets run into each other?

  • apope
  • · Replies 9 ·
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9

Undergrad Faradays law wattage/voltage question?

  • drfunks
  • · Replies 1 ·
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1

High School Why Does Touching a 9 Volt Battery to Your Tongue Create a Jolt?

  • h20h
  • · Replies 5 ·
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5

Undergrad High voltage, low amperage, large amount of power

  • music_lover12
  • · Replies 17 ·
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17

Undergrad Can a Water Analogy for Capacitors Explain the Role of Dielectrics?

  • i.mehrzad
  • · Replies 2 ·
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2

High School Electric Battery: Physics Explanation | How Does it Work?

  • physkid26
  • · Replies 3 ·
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3

Undergrad The link between electricity and magnetism

  • hover
  • · Replies 3 ·
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3

Undergrad Steady current and logical inconsistencies that Im struggling to resolve

  • O.J.
  • · Replies 10 ·
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10

Graduate K-Vector Function of Space in EM Waves: Implications

  • Swapnil
  • · Replies 8 ·
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8

Graduate Deriving EM Energy: Calculation & Explanation of E-Field Energy Storage

  • Swapnil
  • · Replies 3 ·
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3

High School Preserving the lifetime of a bulb ?

  • f3nr15
  • · Replies 4 ·
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4

Graduate Magnetic fields of infinite solenoid and infinite current carrying plane

  • s.gautam
  • · Replies 17 ·
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17

Undergrad How Does EM Wave Penetrate in an Elevator/Lift?

  • serverxeon
  • · Replies 9 ·
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9

Undergrad Can the Equation DB/dt = -curl E Help Solve Real-Life Problems?

  • delta001
  • · Replies 9 ·
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9

Undergrad Plates in a CRT and how they become charged

  • h20h
  • · Replies 3 ·
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3

Undergrad Electromagnetic induction question

  • bill nye scienceguy!
  • · Replies 6 ·
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6

Graduate Magnetic Braking: Examining Relative Motion of Wire and Field

  • EFuzzy
  • · Replies 5 ·
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5

Undergrad Decreasing Magnetism of Electromagnet

  • Mark Neilan
  • · Replies 4 ·
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4

Undergrad Ampere's circuital law on finite length wire

  • s.gautam
  • · Replies 8 ·
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8

Graduate How does a Faraday cage protect against lightning strikes?

  • kaotak
  • · Replies 10 ·
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10

Undergrad Inside a Conductor: Understanding Zero Electric and Magnetic Fields

  • Swapnil
  • · Replies 4 ·
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4

High School Canceling Magnetic & Electric Fields: An O Level Student's Guide

  • Ahmed Abdullah
  • · Replies 4 ·
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4

High School How Do Electrons Flow Through Conductive Wires?

  • Brock
  • · Replies 10 ·
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10

Undergrad What is the origin of magnetic fields?

  • Rainbow
  • · Replies 10 ·
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10

Undergrad Electricity - detailed explanation ?

  • JPC
  • · Replies 8 ·
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8

Undergrad Electric dipole and Gauss' Law

  • Rainbow
  • · Replies 9 ·
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9

Undergrad Do we currently obtain useful energy from Gravity?

  • gcn3030
  • · Replies 13 ·
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13

Graduate Magnetic Field Caused by Relativistic Effect

  • farmboy
  • · Replies 8 ·
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8

Undergrad Why ampere's law cannot be applied to certain situations

  • Ja4Coltrane
  • · Replies 9 ·
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9

Graduate Does Gauss's Law Allow for Non-Enclosed Point Charges on Gaussian Surfaces?

  • kaotak
  • · Replies 5 ·
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5

Graduate Why doesn't the integral form of Faraday's Law work for a rotating copper disk?

  • lugita15
  • · Replies 15 ·
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15

High School Could a Magnetic Car Revolutionize Transportation?

  • AussieDave
  • · Replies 8 ·
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8

Undergrad Lenz's Law and Electromagnetic Induction

  • Soaring Crane
  • · Replies 8 ·
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8

High School What Does North Indicate in Magnets?

  • JPC
  • · Replies 1 ·
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1

Undergrad Exploring the Constant Frequency of EM Waves

  • Swapnil
  • · Replies 3 ·
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3

Undergrad Building a Magnetic Railgun - Questions & Answers

  • hover
  • · Replies 2 ·
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2

Undergrad Measuring Inductance in an LR Circuit with AC

  • momomo_mo
  • · Replies 3 ·
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3

Undergrad Soft Iron Core Functions in Inductor, Motor & Generator

  • momomo_mo
  • · Replies 2 ·
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2

Graduate Dielectric material becomes conductive at High Frequency?

  • logic5
  • · Replies 5 ·
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5

Graduate Do Magnetic Fields Exist in All Frames of Reference?

  • Swapnil
  • · Replies 3 ·
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3

Undergrad Electric field due to a charged ring off-axis

  • a789irfan
  • · Replies 1 ·
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1

Graduate Is There a Meissner-Like Effect for Electric Fields?

  • RGClark
  • · Replies 1 ·
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1

Undergrad Is a Small Scale Tesla Tower Possible Today?

  • Eric Ho
  • · Replies 5 ·
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5

Undergrad Voltage Readings: Internal Resistance & Measurement

  • haskill
  • · Replies 2 ·
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2

High School Magnetic Mystery: Forces Explained

  • kalachnik
  • · Replies 4 ·
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4

Graduate Magnetic Bar Question: Freezing to Zero Kelvin

  • pixel01
  • · Replies 3 ·
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3

Graduate Magnetism: which reference frame?

  • gabee
  • · Replies 8 ·
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8

High School Ohm's Law vs Ohmmeter: Comparing Resistance Values

  • surfer
  • · Replies 6 ·
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6

Graduate Solve the Electrostatic Paradox: Find Finite Value of E

  • FulhamFan3
  • · Replies 8 ·
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8

Undergrad How Can I Build an Effective Magnetic Separator for a Mineral Factory?

  • samulon
  • · Replies 1 ·
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1

Undergrad Calculate pull force of magnet?

  • phsieh2005
  • · Replies 6 ·
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6

Undergrad How Does Electromagnetic Radiation Work?

  • gelf
  • · Replies 5 ·
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5

High School Oscillations and damping (air resistance)

  • tom12345
  • · Replies 2 ·
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2

Undergrad Mutual Inductance: Lenz's Law & Switch Effects

  • Soaring Crane
  • · Replies 10 ·
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10

Undergrad Electric Potential: V = IR Explained

  • touqra
  • · Replies 4 ·
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4

Graduate Does Quantum Mechanics Suggest Photons Are Electrons and Positrons in a Cycle?

  • Agnostic
  • · Replies 8 ·
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8

Undergrad Why Does Induction Cause Repulsion in Electromagnetic Experiments?

  • Line
  • · Replies 10 ·
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10

Undergrad How Can the Electric Field Be Constant in a Parallel Plate Capacitor?

  • seang
  • · Replies 1 ·
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1

Graduate Conserved Charge Inconsistency: Hamiltonian v. Lagrangian

  • kakarukeys
  • · Replies 5 ·
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5

High School Understanding Lenz's Law - Get a Clear Explanation Now

  • needhelp123
  • · Replies 4 ·
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4

Graduate How fundamental is Faraday's Law?

  • Noesis
  • · Replies 3 ·
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3

High School Polarization when associated with electric fields?

  • varunsarda88
  • · Replies 2 ·
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2

Undergrad Magnetic and Electric Field Curiousity

  • Noesis
  • · Replies 6 ·
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6