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Undergrad Magnetic fields in transformers and back emf?

  • 21joanna12
  • · Replies 2 ·
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2

Undergrad Question about the RLC circuit

  • bubblewrap
  • · Replies 5 ·
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5

Undergrad Need of small charge in definition of electric field?

  • Raj Batra
  • · Replies 1 ·
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1

Undergrad Current Loop Generating a Magnetic Field

  • Wilfrid Somogyi
  • · Replies 6 ·
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6

Undergrad What happens when the observer hears sounds from a super sonic source?

  • arpon
  • · Replies 6 ·
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6

Undergrad Clarifying Electric potential energy

  • Inpyo
  • · Replies 1 ·
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1

Graduate Mutual inductance interpretation

  • Chemist@
  • · Replies 18 ·
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18

Graduate How many magnets do I need to generate 1 kW of power using neodymium magnets?

  • Newpenny
  • · Replies 3 ·
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3

Undergrad How does a magnetic field "push" charges?

  • ghostfolk
  • · Replies 11 ·
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11

High School Electric Current in a Capacitor: What is it Called?

  • Chemist@
  • · Replies 7 ·
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7

Graduate How do the magnetic fields produce emfs?

  • ghostfolk
  • · Replies 6 ·
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6

Graduate Relationships between integration limits of Maxwell Equation

  • henrybrent
  • · Replies 2 ·
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2

Undergrad Displacement Current: Difference & Example

  • arvindsharma
  • · Replies 2 ·
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2

Undergrad Electric & Magnetic Fields in EM Waves: Explained

  • Samujawal
  • · Replies 4 ·
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4

High School Understanding Voltage Dividers: Polarity and Voltage Reduction

  • Jewish_Vulcan
  • · Replies 4 ·
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4

Undergrad Is there any effect of wire's insulation on it's magnetic an

  • dumbboy340
  • · Replies 8 ·
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8

Undergrad How Do You Locate the Neutral Point Between Multiple Charges on a Line?

  • Samurai44
  • · Replies 5 ·
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5

High School Electricity: Resistance and temperature

  • Fabian901
  • · Replies 7 ·
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7

Undergrad Electric Field and Force between two plates [general question]

  • Samurai44
  • · Replies 5 ·
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5

Undergrad What Are the Pros and Cons of Different Statements of Ohm's Law?

  • Philip Wood
  • · Replies 20 ·
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20

Undergrad Can plasma create current in an inductor?

  • Kerso1991
  • · Replies 2 ·
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2

Graduate Non-differential Form of Biot-Savart Law: Comparison and Confusion Clarified

  • Chemist@
  • · Replies 3 ·
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3

Undergrad Understanding the Equivalence of Circuits: The Role of Total Resistance

  • arpon
  • · Replies 1 ·
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1

Undergrad Dielectric Constant Chart of Gases

  • Symmetry777
  • · Replies 7 ·
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7

Undergrad AC question -- How does AC current "reach" its load?

  • derek10
  • · Replies 15 ·
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15

Undergrad Help visualizing E-field between moving magnets

  • ArchieDave
  • · Replies 5 ·
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5

Undergrad Calculate Repulsive Force of Magnet with Strong Magnetic Field

  • JANA91
  • · Replies 1 ·
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1

Graduate Origin of Charge: Explained by Modern Physics

  • eifphysics
  • · Replies 1 ·
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1

Graduate Maxwell's equation in reciprocal space

  • naima
  • · Replies 10 ·
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10

High School Conservative and non conservative fields

  • oreo
  • · Replies 3 ·
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3

High School Magnet with Non Magnetic Materials

  • JANA91
  • · Replies 3 ·
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3

Undergrad Propagation of electromagnetic wave

  • jeevansai
  • · Replies 5 ·
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5

Undergrad Electric Field vs Magnetic Field vs Electromagnetic waves

  • Jewish_Vulcan
  • · Replies 7 ·
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7

Undergrad Transformer core variable reluctance

  • sondreL
  • · Replies 4 ·
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4

Undergrad Do electrons move in an electric field or in a conductor?

  • Symmetry777
  • · Replies 5 ·
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5

Graduate Electromagnetic Coil Strength from Moving Liquids?

  • Physt
  • · Replies 2 ·
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2

Undergrad Is an induced emf always produced by a change in flux?

  • James Bond
  • · Replies 4 ·
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4

Undergrad Atom Charge Swap: Can It Be Possible?

  • Raiden60
  • · Replies 9 ·
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9

High School Why capacitors and inductors affect the phase and resistors

  • physior
  • · Replies 33 ·
2
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33

Undergrad The connection between EMF and voltage in EM

  • Coffee_
  • · Replies 8 ·
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8

High School Why is Magnetic Flux Important in Understanding Induction?

  • yuenkf
  • · Replies 12 ·
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12

High School Where Do Electrons Come From in DC Generated Current?

  • yoga face
  • · Replies 47 ·
2
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47

High School Electric Lines of Force: Debunking the Myth of Crossed Paths in Physics

  • dumbboy340
  • · Replies 4 ·
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4

Graduate Coulomb's law theoretical hypothetical question

  • Rhasz
  • · Replies 8 ·
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8

Undergrad Understand Einstein & Lorentz: E=mc2 & ϒ Formula

  • Jorlack
  • · Replies 5 ·
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5

Undergrad Ampere & Biot-Savart: 2 Questions Answered

  • sawer
  • · Replies 12 ·
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12

High School Electric circuits formulas doubts

  • thegreengineer
  • · Replies 5 ·
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5

Undergrad Wave Amplification & Frequency Transformation

  • Zachary Samples
  • · Replies 1 ·
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1

Undergrad Electric potential and electric field

  • oreo
  • · Replies 4 ·
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4

Graduate Resistance of Displacement Current

  • Kushank
  • · Replies 1 ·
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1

Undergrad Trying to understand Electric Potential

  • Inpyo
  • · Replies 5 ·
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5

High School Electric circuit and capacitance

  • oreo
  • · Replies 5 ·
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5

Undergrad Any economical quantitative electrostatics experiment?

  • Dorea
  • · Replies 1 ·
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1

Graduate Voltage drop across ideal solenoidal inductor

  • genxium
  • · Replies 5 ·
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5

High School What Happens if You Connect an AAA Battery Upside Down in a Capacitor Circuit?

  • ask123
  • · Replies 10 ·
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10

Graduate What are the effects of gyromotion on changing magnetic fields?

  • TESL@
  • · Replies 3 ·
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3

Graduate Is a Grounded Plane Electrically Neutral?

  • Razvan
  • · Replies 10 ·
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10

Undergrad Novice Electrical Guy with a Mechanical Question

  • FordTruckMan
  • · Replies 9 ·
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9

Undergrad What is magnetic field intensity H?

  • rizwan_20
  • · Replies 1 ·
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1

Undergrad SOLVED Centripetal force in magnetic field

  • moment1337
  • · Replies 1 ·
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1

Graduate Maxwell's equations in matter (steady conditions)

  • henrybrent
  • · Replies 8 ·
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8

Graduate If Faraday invented field concept, how did Newton find g?

  • sawer
  • · Replies 11 ·
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11

Undergrad Both plates of capacitor connected to positve voltage

  • arpon
  • · Replies 18 ·
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18

Graduate Net Lorentz force, of a non-linear wire.

  • PhiowPhi
  • · Replies 24 ·
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24

Graduate Problems about Ampere's Law and Biot-Savart's Law

  • arpon
  • · Replies 7 ·
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7

Undergrad Centre of Mass - Centre of Charge?

  • PFuser1232
  • · Replies 7 ·
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7

Graduate Can a Permanent Magnet Hoverboard Work on a Magnetic Floor?

  • spikie1
  • · Replies 1 ·
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1

Graduate Voltage difference of a circle under changing magnetic field

  • genxium
  • · Replies 8 ·
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8

High School Can repulsing magnets create lift?

  • sameev29
  • · Replies 13 ·
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13

Undergrad Completing an electric circuit with salt water

  • amrmohammed
  • · Replies 4 ·
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4

Graduate What is free electromagnetic field?

  • sergiokapone
  • · Replies 13 ·
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13

Graduate Energy of Magnetic field by current in a long bar

  • zhanhai
  • · Replies 1 ·
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1

Undergrad What Happens When You Add More Electrons to a Hydrogen Atom?

  • avalanchesj
  • · Replies 3 ·
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3

Graduate Is B more analogous to D or to E (electromagnetism)?

  • Boorglar
  • · Replies 25 ·
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25

Graduate Advantage of electron microscopy

  • Goodver
  • · Replies 6 ·
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6

Graduate Derive Ampere's law from Biot-Savart law?

  • Whyalwaysme
  • · Replies 1 ·
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1

Graduate Maxwell's Demon via molecular reed valves can produce work?

  • Buzzworks
  • · Replies 2 ·
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2

High School Electric Charge in Dogs - Science Explained

  • bibi9
  • · Replies 14 ·
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14

Graduate Saturation current on photoelectric effect

  • tayliangcai
  • · Replies 7 ·
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7

Graduate Transfer of AC through rotating capacitor

  • Salvador
  • · Replies 37 ·
2
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37

Graduate Problem on Energy Density in Dielectric Medium

  • genxium
  • · Replies 5 ·
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5

Graduate Polarization of polymers under electric field

  • jollage
  • · Replies 5 ·
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5

Undergrad How does the electrolyte in a battery work?

  • radaballer
  • · Replies 8 ·
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8

High School How Does An Electric Cell Work

  • dsi720
  • · Replies 1 ·
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1

High School How higher frequency EM waves become more dangerous

  • Raghav Gupta
  • · Replies 12 ·
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12

High School Is it really ok to assume that internal resistance of a cell is 0?

  • leojun
  • · Replies 2 ·
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2

High School What are the best beginner books on electricity for high school students?

  • Fabian901
  • · Replies 6 ·
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6

Undergrad Electromagnetic Interference in Cell Phones

  • tyogav
  • · Replies 1 ·
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1

Undergrad Why does an electron not stick to the nucleus?

  • icecubebeast
  • · Replies 5 ·
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5

Undergrad Charging and Discharging of two capacitors

  • Hijaz Aslam
  • · Replies 7 ·
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7

High School Grounding by touching a ground lead

  • rasen58
  • · Replies 3 ·
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3

Undergrad Doppler effect - Apparent change in frequency or wavelength?

  • amenhotep
  • · Replies 1 ·
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1

Graduate Heat capacity of magnetic dipole in magnetic field

  • Nikitin
  • · Replies 1 ·
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1

High School Understanding Electric Charge: Is it Just Electrons?

  • Ahsan123
  • · Replies 3 ·
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3

Graduate Capacitive sensors: mutual capacitance

  • MyNameIsNeo
  • · Replies 1 ·
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1

Undergrad Why the current will be unaffected if C is increased?

  • Tangeton
  • · Replies 13 ·
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13

High School Magnetic field could only affect moving charges?

  • yuenkf
  • · Replies 3 ·
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3

Graduate Is the charge distribution for an electric field unique?

  • Ganesh Ujwal
  • · Replies 1 ·
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1

Undergrad How does Faraday's law of induction relate to Special Relativity Theory?

  • Angel_1
  • · Replies 6 ·
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6

Undergrad What Determines the Current Flow in a Potentiometer?

  • songoku
  • · Replies 14 ·
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14