Electromagnetism Forum

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Undergrad Question in determing the direction of induced emf?

  • ehabmozart
  • · Replies 1 ·
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1

Graduate Creating static charge at a distance.

  • res3210
  • · Replies 3 ·
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3

Undergrad Gravity is std. therefore can we rate a 'mass at height' by watts?

  • marcophys
  • · Replies 3 ·
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3

Undergrad Magnetic field and repulsion bewteen wires

  • gralla55
  • · Replies 13 ·
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13

High School Why are electrons located so far from an atom's nucleus?

  • mia5
  • · Replies 11 ·
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11

Undergrad Understanding the spectrum of frequencies

  • Jacobim
  • · Replies 5 ·
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5

Undergrad My Research Project centered around Faraday's Law: Help and Discussion

  • KSulli
  • · Replies 2 ·
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2

High School Comparing Coffee Maker Circuits | Are They the Same?

  • sasg28
  • · Replies 18 ·
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18

Undergrad Current leading voltage or vice versa concept

  • member 392791
  • · Replies 3 ·
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3

Graduate What are Some Unresolved Questions in Electrostatics?

  • phymathlover
  • · Replies 9 ·
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9

Graduate Magnetic Energy of Solenoid With/Without Core

  • dgreenheck
  • · Replies 6 ·
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6

Graduate Solving Circuits with Kirchhoff's Laws: A Rigorous Mathematical Approach

  • Bipolarity
  • · Replies 10 ·
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10

Undergrad Ultracapacitor to power electromagnet?

  • Pharrahnox
  • · Replies 3 ·
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3

High School Learning curve of Electromagnetism?

  • martinlematre
  • · Replies 6 ·
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6

Undergrad How Does AC Current Flow Despite Oscillating Charges?

  • CF.Gauss
  • · Replies 2 ·
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2

Graduate Does a charged particle rotate when traveling through a static Bf?

  • mesa
  • · Replies 8 ·
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8

Graduate Dipole term in multipole expansion

  • assed
  • · Replies 1 ·
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1

Undergrad Lenz's Rule - Doubts, Force, and Magnetic Field

  • ehabmozart
  • · Replies 2 ·
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2

Graduate How Does Voltage Behave in Non-Conservative Time-Varying Fields?

  • thegreenlaser
  • · Replies 8 ·
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8

Undergrad Angular Frequency of AC voltage

  • member 392791
  • · Replies 1 ·
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1

Graduate Does the Electrostatic Force Originate from Curvature? An Explanation

  • soumyajitnag
  • · Replies 8 ·
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8

Undergrad Calculating Particle Mass Using Magnetic Force

  • SDPY15
  • · Replies 2 ·
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2

Undergrad Light as a source of electricity

  • Deadevil
  • · Replies 8 ·
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8

Graduate Charge Induction in Liquid: Localising Positive & Negative Charges

  • soumyajitnag
  • · Replies 1 ·
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1

Graduate Ionisation by a magnetic field?

  • Kael42
  • · Replies 7 ·
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7

Undergrad Metal's Effect on RF: Attenuation, Reflection, Absorption?

  • jastewart
  • · Replies 9 ·
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9

Undergrad Electric field-Charge inside a metallic shell

  • Vibhor
  • · Replies 15 ·
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15

Undergrad Understanding Electrostatic Induction in Dielectrics

  • Sandi Gokul
  • · Replies 2 ·
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2

Undergrad Flow of current through zero potential difference

  • soumyajitnag
  • · Replies 3 ·
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3

Graduate E field between 2 wrinkled spheres, radial symmetry?

  • mathnerd15
  • · Replies 1 ·
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1

Undergrad A question about the energy stored in a capacitor.

  • NoddingDog
  • · Replies 4 ·
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4

Undergrad Magnetic forces/fields don't do work?

  • SherlockOhms
  • · Replies 8 ·
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8

Graduate (Non-current) conductors in a magnetic field

  • farglenargle
  • · Replies 11 ·
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11

Graduate Magnetic Shielding of Detectors

  • Cmertin
  • · Replies 4 ·
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4

Undergrad Magnetic moment in a uniform/non-uniform magnetic field?

  • Wiz700
  • · Replies 4 ·
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4

High School Potential drop when current flows through a resistor

  • projjal
  • · Replies 1 ·
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1

Undergrad Question about photoelectric effect equation

  • sandf
  • · Replies 6 ·
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6

Undergrad Calculating the force required to generate 100 kilowatt per hour

  • Jaxodius
  • · Replies 42 ·
2
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42

High School Humming Noise in Electrical Transformers and Appliances

  • PhysicoRaj
  • · Replies 2 ·
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2

Undergrad Vector B in Magnetic Potential Energy

  • Phztastic
  • · Replies 2 ·
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2

Undergrad Intuitive reason for the capacitors/inductors in AC current

  • member 392791
  • · Replies 2 ·
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2

Undergrad Intersection of electric field lines.

  • anirudhsharma1
  • · Replies 2 ·
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2

Undergrad Does intensity of photons affect threshold frequency?

  • Tommy1995
  • · Replies 2 ·
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2

High School Inductor opposing change in current.

  • member 392791
  • · Replies 28 ·
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28

Undergrad Current through a conductor of zero resistance

  • swap1996
  • · Replies 12 ·
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12

High School Why always like poles repel and unlike poles attract

  • ravivarma
  • · Replies 2 ·
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2

Graduate Gauss's Law (Notational confusion)

  • Mandelbroth
  • · Replies 6 ·
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6

Undergrad Calculating Specific Charge: U-238 Example

  • Googl
  • · Replies 2 ·
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2

Undergrad Calculating Induced Voltage in a Single-Turn Circular Coil: How Can It Be Done?

  • Vikas_Madhu
  • · Replies 1 ·
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1

Quanta of elektric/magnetic fields

  • Dreak
  • · Replies 1 ·
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1

Undergrad The way the potentiometer measures

  • Ezio3.1415
  • · Replies 7 ·
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7

Undergrad Why is the index of refraction dependent on the dielectric constant

  • Kidphysics
  • · Replies 7 ·
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7

Undergrad What Happens to Current in an Ideal Circuit with Zero Resistance?

  • swap1996
  • · Replies 4 ·
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4

Graduate Capacitance of a capacitor in which the first plate is (-)vely charged

  • shiv_99
  • · Replies 1 ·
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1

Undergrad Negative Rod and Negative Conductors

  • BankerGoneBio
  • · Replies 3 ·
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3

High School What Changes If i Place two magnets together?

  • Sylvester1
  • · Replies 3 ·
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3

Undergrad Finding strength, pull, telsa (anything) of an electromagnet

  • Pharrahnox
  • · Replies 4 ·
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4

Graduate Create visible light with spinning magnet?

  • jafeucht
  • · Replies 2 ·
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2

Undergrad Physical Quantity Analogous to Inductance

  • tapan_ydv
  • · Replies 4 ·
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4

Undergrad How to uniformly charge an insulating sphere?

  • amiras
  • · Replies 9 ·
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9

Graduate Field generated by a moving charge

  • yjoe61
  • · Replies 2 ·
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2

Undergrad A Problem with Two Current-Carrying Wires

  • Radek Vavra
  • · Replies 3 ·
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3

Graduate Magnetic Force and Work: Is There More to the Story?

  • IGFSoft
  • · Replies 5 ·
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5

High School Are the poles of a broken magnet always the same?

  • CompuChip
  • · Replies 6 ·
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6

Graduate Can a Passive Device Mimic V = (const.) d3I/dt3 in a Circuit?

  • Harrisonized
  • · Replies 3 ·
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3

High School How Can I Learn About Permanent Magnet Field Strengths and Interactions?

  • Wingwalker
  • · Replies 2 ·
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2

Graduate Understanding Electric Polarization in Dielectric Capacitors

  • Nikitin
  • · Replies 1 ·
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1

Undergrad What's different on electron level when voltage is higher?

  • kraku
  • · Replies 8 ·
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8

High School Electric Potential in circuits

  • Enterprise D
  • · Replies 16 ·
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16

High School Make Solenoid Work: Tips for DIY Coil Winding

  • Fenster Karton
  • · Replies 23 ·
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23

Undergrad Increasing amperage in simple circuit

  • Chark711
  • · Replies 10 ·
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10

Undergrad Is There a Connection Between Electromagnetism and Gravity?

  • JayJohn85
  • · Replies 11 ·
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11

Graduate Does a magnet affect antenna transmission?

  • PolyOneTechie
  • · Replies 3 ·
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3

High School When two objects Attract/Repel(Charges/magnets/electromagnets/etc )

  • Phztastic
  • · Replies 59 ·
2
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59

Undergrad Attraction force of a small and large area?

  • Wiz700
  • · Replies 15 ·
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15

Graduate Does the Motion of Electrons in a Wire or Charged Metal Sphere Produce EM Waves?

  • tmv3v
  • · Replies 17 ·
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17

Undergrad Can AC Currents Be Added in a DC Circuit?

  • 0fibonacci1
  • · Replies 1 ·
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1

Undergrad Charging capacitor by another capacitor

  • bgq
  • · Replies 3 ·
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3

Graduate Unraveling Faraday's Law: Formal Proof & Understanding the Transformation | Wiki

  • LiftHeavy13
  • · Replies 1 ·
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1

Graduate Squareness of the magnetic properties

  • anithangaraj
  • · Replies 1 ·
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1

High School What shape should my iron core be for a strong electromagnet?

  • Captain_Stand
  • · Replies 12 ·
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12

Undergrad Can Radio Waves Change the Electric or Magnetic Properties of Metals or Liquids?

  • Neuvotonian
  • · Replies 1 ·
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1

Undergrad EM waves and the direction of E-fields & B-Fields

  • cryora
  • · Replies 12 ·
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12

Graduate Electrostatics in RC\DC Circuits-feedback process

  • Dweirdo
  • · Replies 2 ·
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2

Undergrad The factors in this system that would generate CEMF

  • Wiz700
  • · Replies 5 ·
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5

Undergrad I don't understand Electric Potential in battery

  • wirefree
  • · Replies 7 ·
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7

High School AC Theory Help: Resistor, Capacitor & Inductor in Series

  • MegaDeth
  • · Replies 2 ·
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2

Undergrad Intuitive, real-world explanation of displacement current?

  • Nikitin
  • · Replies 6 ·
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6

Graduate Electromagnetic systems always dissapative?

  • HomogenousCow
  • · Replies 7 ·
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7

Undergrad Direction of Electron Flow with Real Batteries

  • tomcat017
  • · Replies 16 ·
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16

Undergrad Cherenkov radiation Why the EM waves are constructive

  • HARI A
  • · Replies 2 ·
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2

Graduate What Causes Induced EMF in an Incomplete Ring?

  • bentzy
  • · Replies 14 ·
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14

Undergrad Resistance in circuits with transformers

  • Pharrahnox
  • · Replies 1 ·
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1

Graduate Create photographic camera sensor interference with magnetic fields

  • Camero
  • · Replies 12 ·
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12

Undergrad Electric potential energy due to a point charge

  • Ashu2912
  • · Replies 20 ·
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20

Graduate Can photon capture give electron and positron opposite charge

  • Salman2
  • · Replies 7 ·
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7

High School Basic questions about electric charge

  • chipotleaway
  • · Replies 8 ·
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8

Undergrad How to Calculate RPM for an Electric Motor on Paper?

  • njguy
  • · Replies 4 ·
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4

Undergrad Interaction of electromagnetic waves with a plane mirror

  • Jimmy87
  • · Replies 1 ·
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1

Graduate Why Do Photons from Electrons Split into Particles?

  • StarsRuler
  • · Replies 8 ·
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8