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Graduate Tracing back an electromagnetic wave to its source

  • andresB
  • · Replies 6 ·
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6

Undergrad Electrostatic forces in plastic bags

  • mcaay
  • · Replies 1 ·
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1

Undergrad Energy in a Capacitor: Explained

  • naiasetvolo
  • · Replies 45 ·
2
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45

Graduate Particles with neutral charges but not affected by the weak or strong force

  • Einstein's Cat
  • · Replies 10 ·
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10

Graduate Understanding Magnetic Field in Length Gauge

  • DrClaude
  • · Replies 9 ·
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9

Undergrad Understanding Earth's N/S Poles: Magnetic, Geographic, Geomagnetic, & Dip

  • transmini
  • · Replies 2 ·
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2

Graduate Is Magnetic force conservative?

  • hokhani
  • · Replies 20 ·
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20

Undergrad Potential due to a uniformly charged sphere

  • gracy
  • · Replies 9 ·
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9

Undergrad Why do E and G both degrade by 1/r^2?

  • Ghost117
  • · Replies 7 ·
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7

Graduate Dynamic Relative magnetic permeability

  • djsourabh
  • · Replies 3 ·
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3

Undergrad Mechanical Advantage in absence of resistance or load

  • UMath1
  • · Replies 40 ·
2
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40

Undergrad Clarification of where energy is stored in a capacitor?

  • davenn
  • · Replies 11 ·
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11

Graduate Relationship between an EM wave and its current

  • tj50
  • · Replies 7 ·
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7

High School Is My Capacitor Fully Charged?

  • Gaurav sandhu
  • · Replies 4 ·
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4

Graduate What's the electromagnetic effect on a pendulum oscillation?

  • TorNaGul
  • · Replies 1 ·
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1

Graduate Interesting Electrodynamics Problem

  • ChrisVer
  • · Replies 12 ·
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12

Graduate Electromagnetic wave incidence on interface

  • EmilyRuck
  • · Replies 11 ·
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11

Graduate Solving a parallel LC circuit with DC current

  • DoobleD
  • · Replies 6 ·
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6

Undergrad How do thermoelectrics work?

  • hartmantc
  • · Replies 9 ·
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9

High School How correct are these concepts about circuits?

  • mohamed el teir
  • · Replies 48 ·
2
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48

Undergrad Graviational vs Electrical Potential

  • Novanglus
  • · Replies 7 ·
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7

Undergrad Delaying a signal 180 or 90 degrees

  • Rectifier
  • · Replies 3 ·
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3

High School Electric current misconception

  • Amr Elsayed
  • · Replies 4 ·
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4

Graduate The current of a single electron

  • AuroralLight
  • · Replies 5 ·
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5

Graduate How to Calculate Velocity of Water through a Magnetohydrodynamic Thruster?

  • Superposed_Cat
  • · Replies 1 ·
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1

High School What is the Direction of Magnetic Field Lines?

  • ppppparker
  • · Replies 4 ·
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4

Undergrad Magnetic Flux Density Direction

  • DiamondV
  • · Replies 1 ·
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1

Undergrad Why do we multiply permittivity of vacuum with relative permittivity?

  • naiasetvolo
  • · Replies 10 ·
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10

High School Can a transformer handle more current than its specifications?

  • Marcis Rancans
  • · Replies 2 ·
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2

Undergrad Potential Difference between two parallel charged plates.

  • Manu Sarbhoy
  • · Replies 4 ·
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4

Undergrad What cause the atomic orbitals electron configuration ?

  • netqwe
  • · Replies 7 ·
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7

Graduate Why Use Plane Waves to Solve Maxwell's Equations?

  • girlinphysics
  • · Replies 1 ·
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1

Undergrad Determining Thevenin equivalent resistance

  • TheCanadian
  • · Replies 7 ·
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7

Undergrad Electric Field Inside a Charged Conductor: Explanation Needed

  • Samson4
  • · Replies 2 ·
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2

Undergrad Why do we want to know how much a charge can be stored /V?

  • naiasetvolo
  • · Replies 4 ·
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4

Undergrad Magnetic levitation - superconductors

  • skrat
  • · Replies 1 ·
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1

Graduate Can Cones Intensify Magnetic Fields Between Electromagnets?

  • rkum99
  • · Replies 1 ·
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1

High School The definition of the electric field?

  • naiasetvolo
  • · Replies 2 ·
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2

Undergrad Need help understanding strange idea (electric motor rotor and stator)

  • Salvador
  • · Replies 13 ·
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13

High School Electric field direction from high V to lower V

  • gracy
  • · Replies 74 ·
3
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74

Undergrad Voltage in Circuits: Explaining Voltage Drops & Flow

  • UMath1
  • · Replies 114 ·
4
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114

High School Why Does a Compass Needle Deflect Between Opposing Currents?

  • heavystray
  • · Replies 28 ·
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28

Undergrad What does it mean to say a battery is however many volts?

  • kostoglotov
  • · Replies 7 ·
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7

Undergrad E field calculations for continuous charge distributions

  • kiwibird4
  • · Replies 1 ·
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1

Graduate Parasitics in Solenoids: The Relationship Between AC Frequency and Induced EMF

  • alex_ph
  • · Replies 1 ·
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1

Undergrad What is the relationship between dℓ and dR in the sign convention for voltage?

  • Calpalned
  • · Replies 3 ·
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3

Undergrad What happens when capacitors are reconnected?

  • Calpalned
  • · Replies 5 ·
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5

Graduate Why is Faraday's law one-sided?

  • sarahwill
  • · Replies 6 ·
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6

Graduate Calcs. for continuous charged media don't explode?

  • davidbenari
  • · Replies 14 ·
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14

Graduate EM Wave creation in different frames of reference

  • ealbers
  • · Replies 1 ·
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1

High School How do i interpret the following electric potential diagram?

  • WhyNerfZed
  • · Replies 2 ·
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2

Undergrad Wave Optics: Electromagnetic Waves

  • Prannoy Mehta
  • · Replies 2 ·
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2

Undergrad PN Junction: Current flow in Reverse Bias

  • Prannoy Mehta
  • · Replies 2 ·
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2

Graduate Why do transformers use AC currents in the primary coil?

  • sarahwill
  • · Replies 6 ·
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6

Undergrad Big rotor vs multiple small rotors in a Permanent Magnet Generator

  • RobertSll
  • · Replies 1 ·
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1

Graduate Maxwell-Boltzmann Equation (avg velocity)

  • Calpalned
  • · Replies 1 ·
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1

Graduate Calculating Inductance of a Solenoid with Multiple Isolated Loops

  • rocket4382
  • · Replies 1 ·
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1

Undergrad Electrostatic discharge current

  • Nicolas_1994
  • · Replies 1 ·
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1

Undergrad Force on Magnet from Electromagnet

  • aarothepharo
  • · Replies 1 ·
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1

Undergrad Calculate Voltage Output Using Faraday's Law

  • nebix
  • · Replies 4 ·
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4

Undergrad Charged Capacitor: Is Disconnecting Dangerous?

  • Bruno Tolentino
  • · Replies 3 ·
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3

High School Help understanding the Voltage in a circuit.

  • GuidedByEmojis
  • · Replies 1 ·
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1

Undergrad Limits of integration for electric potential

  • Calpalned
  • · Replies 5 ·
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5

Undergrad Understanding how to decompose series and parallel circuits

  • TheCanadian
  • · Replies 10 ·
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10

High School Photoelectric Effect and Conic section

  • BrianKim
  • · Replies 1 ·
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1

Undergrad Magnetic field from free electrons

  • Danyon
  • · Replies 4 ·
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4

Graduate Can ##\mathbf{D}## field only exploit symmetry for linear?

  • davidbenari
  • · Replies 12 ·
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12

Graduate Wavelength/Frequency inside a cavity

  • Capt. Pantsless
  • · Replies 1 ·
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1

Undergrad If I throw an iron ball at a magnet, the ball will bounce of

  • Evis
  • · Replies 3 ·
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3

High School Hall Effect Sensor Basics & Latch Effect Explained

  • ToonBlue
  • · Replies 4 ·
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4

High School What is the color code for a zero Ohm resistance?

  • shahroz
  • · Replies 13 ·
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13

High School Is a Faraday Cage Always Safe, Even When Hollowed Out?

  • Calpalned
  • · Replies 1 ·
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1

Graduate Can a Charge in a Wire Move in a Circle Due to Lorentz Force?

  • Daulet
  • · Replies 1 ·
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1

Undergrad Capacitive Reactance: Calculate Xc & V=I*Xc

  • Devil Moo
  • · Replies 4 ·
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4

Graduate Does electrical conduction require energy state changes?

  • ddesaneis
  • · Replies 2 ·
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2

Graduate How to measure electrostatic charge in this scenario?

  • 24forChromium
  • · Replies 1 ·
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1

Undergrad Types of dipoles and their fields

  • Isaac0427
  • · Replies 7 ·
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7

Undergrad Moving charged particle and its magnetic field

  • 24forChromium
  • · Replies 1 ·
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1

Undergrad Why No Net Electric Field Inside a Conducting Sphere?

  • UMath1
  • · Replies 10 ·
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10

Graduate Frequency encoding gradient in MRI

  • BobP
  • · Replies 6 ·
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6

High School What is the output current of two batteries in series?

  • hikari1987
  • · Replies 5 ·
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5

Graduate Re-magnetized AlNiCo500 but failed

  • Jonnylee
  • · Replies 2 ·
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2

Undergrad 2 equations for electric field

  • Isaac0427
  • · Replies 7 ·
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7

Undergrad Bode plot for first order high pass (RL) - reality vs theory

  • Rectifier
  • · Replies 1 ·
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1

Graduate Can you calculate V at that point?

  • gracy
  • · Replies 7 ·
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7

High School Electric Charges: Understand Electric Currents

  • sach963
  • · Replies 2 ·
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2

Graduate Electrodynamics from Jefimenko's equations

  • Dale
  • · Replies 6 ·
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6

Undergrad Magnetic field strength at point P around a solenoid

  • ealbers
  • · Replies 1 ·
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1

Undergrad How to find potential *Energy* between two point charges?

  • gracy
  • · Replies 17 ·
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17

High School Magnetic effect of electric current

  • Karan Punjabi
  • · Replies 36 ·
2
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36

High School Why the wire burns in short current with flow of current?

  • 123kid
  • · Replies 3 ·
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3

Undergrad Gauss's law for a charged ring

  • CuicCuic
  • · Replies 4 ·
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4

Undergrad Work Done in an Electric Field

  • Ivore
  • · Replies 4 ·
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4

Graduate How the features of electron represented in it ?

  • netqwe
  • · Replies 1 ·
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1

High School What Do the Parameters in EveryCircuit's Diode Element Mean?

  • Bruno Tolentino
  • · Replies 1 ·
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1

Undergrad Moving an iron sphere along a path with an electromagnet

  • edmundsj
  • · Replies 2 ·
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2

High School Magnetic materials-how to tell

  • aiop
  • · Replies 2 ·
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2

Graduate Why Is the Conversion Between CGS and SI Units in Electromagnetism Confusing?

  • Alireza_M
  • · Replies 2 ·
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2

Undergrad Which radiation emitted by circadian electron ?

  • netqwe
  • · Replies 5 ·
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5

Undergrad What keeps an electric circuit from stopping?

  • Heatherfield
  • · Replies 1 ·
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1