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Graduate How Does a Rail Gun Work Without an External Magnetic Field?

  • jsmith613
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1

Undergrad Biasing amplifiers and what they do to the input and output voltages

  • therajinator
  • · Replies 5 ·
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5

Undergrad How the efficiency of transformer affects turn ratio

  • mmssm
  • · Replies 1 ·
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1

Graduate Interference of electromagnetic waves

  • freddyfish
  • · Replies 2 ·
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2

Undergrad Tension and frequency relationship on a violin

  • CAF123
  • · Replies 1 ·
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1

Undergrad Is it possible to harness electricity from the ground of the earth?

  • Ka-KoolKid
  • · Replies 2 ·
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2

Undergrad Dia, para & ferromagnetic materials

  • Roodles01
  • · Replies 1 ·
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1

Undergrad Photoelectric current VS frequency

  • ImranParukZA
  • · Replies 6 ·
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6

Graduate Iron rod - will flux link with disk above it

  • jsmith613
  • · Replies 8 ·
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8

Undergrad Is angular frequency absolute?

  • Michio Cuckoo
  • · Replies 3 ·
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3

Undergrad Condenser capacity inversely proportional to source voltage - why?

  • carpetman
  • · Replies 8 ·
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8

Undergrad Charge seperation in a conducting wire

  • jsmith613
  • · Replies 1 ·
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1

Graduate Potential energy and torque in a magnetic field

  • BrianC12
  • · Replies 2 ·
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2

Undergrad Can a constant magnetic field cause circular motion?

  • schaefera
  • · Replies 10 ·
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10

High School Is Your Lab's Grounding Jack Properly Connected?

  • drerzaask
  • · Replies 4 ·
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4

Undergrad Question about charge, q, that appears in various EM equations

  • cronanster
  • · Replies 4 ·
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4

Undergrad Electric Potential Energy vs. Potential

  • schaefera
  • · Replies 9 ·
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9

Graduate What could be causing the periodic voltage drop in my LCD projector's output?

  • Kururunfagoju
  • · Replies 6 ·
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6

Undergrad Resistance, power and brightness of bulb?

  • pizzaboyx
  • · Replies 3 ·
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3

Graduate Can I Observe Photon Emission from Accelerating Charged Particles?

  • LitleBang
  • · Replies 25 ·
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25

Graduate Trying to apply electric current to plasmas in motion.

  • dougettinger
  • · Replies 4 ·
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4

Graduate Maxwell Equations in Tensor Notation

  • TheEtherWind
  • · Replies 1 ·
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1

Undergrad Is Earth's Magnetic Field Affecting My Homemade Compass?

  • Robin07
  • · Replies 9 ·
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9

Undergrad Electric charge vs. altitude - what energy is required?

  • Low-Q
  • · Replies 2 ·
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2

High School Does my laptop/cell phone battery charge up like a capacitor?

  • LogicX
  • · Replies 6 ·
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6

Undergrad Magnetic field of a solenoid problem

  • sgstudent
  • · Replies 5 ·
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5

Graduate Electromagnetic radiation in force field

  • danmay
  • · Replies 9 ·
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9

Graduate Divergence of electric field and charge density

  • vin300
  • · Replies 5 ·
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5

Undergrad Magnetic fields and Permeability

  • nemesiswes
  • · Replies 7 ·
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7

High School What Are Point Charges and Test Charges in Coulomb's Law?

  • ddnath
  • · Replies 4 ·
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4

Graduate Quadrupole TOF mass spectrometer axial frequency question

  • jonlg_uk
  • · Replies 1 ·
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1

Undergrad Can a Cylindrical Permanent Magnet Core Enhance Electromagnet Strength?

  • Kirua
  • · Replies 9 ·
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9

Undergrad Perpendicular distribution of EMW

  • freddyfish
  • · Replies 1 ·
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1

High School When do batteries drain more quickly?

  • hasankamal007
  • · Replies 8 ·
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8

Graduate Energy in AC Circuits: No Frequency Involved

  • p75213
  • · Replies 4 ·
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4

High School Electric potential in an open circuit

  • yoyoloto
  • · Replies 5 ·
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5

Graduate How are Tranverse Magnetic and Transverse Electric Polarisations defined?

  • StephanJ
  • · Replies 1 ·
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1

Undergrad Increase magnetic field density near surface of magnet

  • Waterfox
  • · Replies 8 ·
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8

Undergrad Permanent Magnet vs Electromagnet Attraction

  • Kirua
  • · Replies 7 ·
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7

Undergrad Confusion on Farad calculation

  • jerbeast
  • · Replies 4 ·
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4

High School Magnetic field of permanent magnet

  • inkpot
  • · Replies 11 ·
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11

Undergrad Relative Permitttivity & Relative Permeability Dependency

  • ubabmar
  • · Replies 4 ·
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4

Undergrad Question regarding voltage and current across a short circuit

  • sgstudent
  • · Replies 6 ·
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6

High School Direction of AC current through AC mains

  • Kartik.
  • · Replies 4 ·
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4

Graduate Instantaneous rest-frame no Lorentz force

  • johne1618
  • · Replies 2 ·
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2

High School Magnetic field lines in a current carrying circular loop

  • 55sparsh
  • · Replies 22 ·
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22

Undergrad Forces between to permanent magnets

  • willyd
  • · Replies 1 ·
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1

Undergrad What Happens to Ferrofluid in a Cylinder with Opposing Magnets?

  • THORPE
  • · Replies 8 ·
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8

Undergrad Does an oscillating charge of any frequency produce em radiation?

  • cdot
  • · Replies 1 ·
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1

Undergrad Can the force exerted by a perm magnet be equated to electro magnet watts?

  • smiddleton
  • · Replies 3 ·
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3

Graduate Understanding the Effects of Acoustic Impedance on Animal Vocalizations

  • troglodrew
  • · Replies 7 ·
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7

Undergrad Can we create a renewable energy toy using a spinning top and magnets?

  • drls
  • · Replies 6 ·
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6

Undergrad Is speed of em waves directly proportional to magntiude of wavelength

  • sgstudent
  • · Replies 5 ·
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5

Graduate How to Calculate Likelihood of Electron Jumping a Gap in Air?

  • liquidFuzz
  • · Replies 1 ·
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1

Graduate Velocity of Electrons and Protons in Plasma Loops

  • skullcracker
  • · Replies 3 ·
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3

High School Reducing static shocks in furniture

  • BlakeInCanada
  • · Replies 16 ·
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16

High School Understanding the Direction of Electric Dipole Moment Vector

  • thunderhadron
  • · Replies 2 ·
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2

Undergrad Question about the Electromagnetic Spectrum

  • swampwiz
  • · Replies 2 ·
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2

Undergrad Magnetic field from stream of protons

  • rrosenthal
  • · Replies 2 ·
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2

Undergrad Charging a capacitor in a tesla coil

  • p75213
  • · Replies 4 ·
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4

Graduate Theoretical highest electric charge?

  • Low-Q
  • · Replies 2 ·
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2

Undergrad Question about current decay in R-L circuit

  • issacnewton
  • · Replies 6 ·
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6

Undergrad Attraction between a wall and a magnet

  • sfink
  • · Replies 2 ·
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2

Graduate Do I Perceive an Induced E Field in Free Fall Next to a Falling Line Charge?

  • cragar
  • · Replies 2 ·
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2

Graduate Question about high electric charge.

  • Low-Q
  • · Replies 3 ·
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3

Undergrad Sign of scalar product in electric potential integral?

  • platonic
  • · Replies 8 ·
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8

Undergrad Practical Electronic & Mechanical Skills for Aspiring Experimentalists

  • V_Permendur
  • · Replies 2 ·
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2

Undergrad Can Electromagnetic Waves Efficiently Heat Metals Over Long Distances?

  • ANarwhal
  • · Replies 12 ·
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12

Undergrad Voltage and current in a series circuit

  • nsv23
  • · Replies 3 ·
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3

High School Can Magnetic Fields Be Focused?

  • [darkside]
  • · Replies 6 ·
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6

Graduate AC Electric field in the conducting media

  • ali hemmati
  • · Replies 7 ·
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7

Graduate Origin of Magnetism: Exchange Coupling Existence

  • HUMERA.S
  • · Replies 1 ·
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1

Graduate The own energy of electromagnatic field

  • zhangyang
  • · Replies 8 ·
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8

Graduate Surface current density problem

  • aaaa202
  • · Replies 1 ·
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1

Undergrad Calculating DC Cable Loss for Solar System Design

  • wfl6
  • · Replies 3 ·
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3

Undergrad Photons chances of combining with electrons

  • reformist
  • · Replies 1 ·
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1

High School What metal is used to concentrate magnetic fields in this video?

  • ANarwhal
  • · Replies 1 ·
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1

Undergrad Why is the magnetic field around a piece of wire circular?

  • ihateblackbox
  • · Replies 1 ·
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1

Undergrad Charging by Inductance: Replacing Electroscope with Capacitor

  • p75213
  • · Replies 1 ·
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1

Undergrad EMF and voltage the same ? NO ? How ?

  • nishantve1
  • · Replies 7 ·
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7

Undergrad Does EM Wave induce emf in coil?

  • Deadevil
  • · Replies 3 ·
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3

Graduate Magnetic Flux inside a Transformer

  • nemesiswes
  • · Replies 5 ·
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5

Undergrad Why Does a Galvanometer Show Zero Deflection Despite Potential Differences?

  • abhijit.k939
  • · Replies 1 ·
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1

Undergrad Projectile motion with air resistance

  • denham
  • · Replies 1 ·
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1

Air HES, Air Hydroelectric Station

  • aruseni
  • · Replies 4 ·
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4

Undergrad Point Charge in Conducting Sphere: Experiencing Force?

  • ledin12
  • · Replies 9 ·
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9

Undergrad Maximum EMF - parallel to field?

  • jsmith613
  • · Replies 5 ·
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5

Undergrad Magnetic resistance in generator, constant?

  • harrycallahan
  • · Replies 4 ·
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4

High School Static Electricity: What Causes Attraction?

  • Jadaav
  • · Replies 6 ·
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6

Graduate Some queries on uniqueness theorem

  • VishweshM
  • · Replies 1 ·
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1

Undergrad Is there capacitance between non-aligned parallel plates?

  • genxium
  • · Replies 12 ·
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12

Undergrad Induction by alternating voltage?

  • infomike
  • · Replies 1 ·
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1

Undergrad How Do Different Mediums Affect Coulomb's Law?

  • Infinitum
  • · Replies 2 ·
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2

Undergrad Calculating Capacitance With Dielectric

  • nishantve1
  • · Replies 3 ·
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3

Graduate Field of a finite line of charge

  • ShayanJ
  • · Replies 24 ·
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24

Graduate Moving Conductor in a Fringing E Field

  • jamesadrian
  • · Replies 1 ·
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1

Graduate Calculating Projectile Trajectories with Gravitational and Electrostatic Forces

  • BOYLANATOR
  • · Replies 5 ·
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5

High School Does a proton signify lack of electrons?

  • Rejjy
  • · Replies 2 ·
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2

Undergrad Multiple inductor or capacitor RLC circuits

  • ricc
  • · Replies 1 ·
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1

Graduate How Do Magnetic Mirrors Affect Conservation and Torque in Plasma Physics?

  • Loro
  • · Replies 5 ·
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5