Electromagnetism Forum

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Electric field within solenoid
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Can Rain and Other Weather Effects Generate Electricity?
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What is Electrical Field in a Closed surface with no charge
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Calculating flux density in an air gap
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Does time run slower or faster in a magnetic field?
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Electromagnetism static charge and forces
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How to account for air resistance?
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5
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How Do Electric and Magnetic Fields Cause EM Waves to Move?
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The Movement of Electricity in a Space Ship
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How Does the Time Constant Relate to Charging and Discharging in Capacitors?
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Capacitors -- charging and discharging
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Direction of the induced electric field?
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1
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Ammeter vs Voltmeter: Error Comparison
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2
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How do we formulate the electromagnetic Lagrangian?
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2
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Effect of number of coils on current in a generator?
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5
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Electromagnetic induction question, coils and magnets
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9
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Discharging capasitors and it's general electrical propertie
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3
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How to convert movemnt/speed to electricity or other E.forms
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4
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Magnetism in Coils: Why PD Changes Direction?
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Maxwell and the speed of light
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Confusion in Maxwell's derivation of Ampere's Force Law - II
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Potential Difference. across capacitors
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32
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EM Phenomenon: Magnetism from a Cathode Ray?
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48
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How to Design and set up a strong electromagnet?
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20
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Confusion about electric potential
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5
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Magnetic moment and current of permanant magnet
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29
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Light Momentum Transfer between point charges
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12
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Static Electricity: Can You Still Get a Shock Off the Ground?
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4
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Capacitor Energy Storage - Where Does 1/2 Factor Come In?
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15
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Current at maximum power - PV cell
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8
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Higher frequency => higher energy
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3
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Electrical potential energy question
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12
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Electric Field Unchanged in Parallel Plate Condenser w/ Varying Distance
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Remove free electrons from plasma?
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1
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Why isn't my electromagnet working?
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14
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Help with understanding electric potential graphs
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Calculate the temperature based on Resistance
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5
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Moving Magnet Along a Conductor
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13
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Magnet Attracts North End of Compass: Meaning
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Total energy of free electron gas
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Electromagnetic Waves: P1 & P2 Intensity, T2-T1/C Distance, & B Magnitude
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11
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Does the length of a wire affect its resistance?
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8
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How Does a Charge Exert Force on Itself?
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Constant Charge/Current Densities with Accelerating Charges
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13
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Confusion in Maxwell's derivation of Ampere's Force Law
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5
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Is Electron Spin always Well Balanced?
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3
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Iron & Magnetic Fields: Permeability or Screening?
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32
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Magnetic field energy of electron
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7
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What is frequency from a photon's perspective?
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24
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Magnetic field outside of a solenoid conceptual
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3
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How Magnetic Flux Causes Load on Generators
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5
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Questions about electric fields, voltage and electric energy
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16
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How many electrons on a Capacitor calculation
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13
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8K
Rolling resistance relation with speed
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8
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Explaining Magnetic Force on Iron Without Moving Charge
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7
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Electric Field Proof: Can Point A Have a Higher Field Than Point B?
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8
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Why won't a magnet exert a force on a stationary charged particle
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Why Does a Negative Ion Move Towards the Anode in a Parallel Plate Capacitor?
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Do # of magnets affect the time for a metal"s Curie point?
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2
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Can a demagnetized neodymium magnet be restored?
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Magnetic fields in circular loop
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Charged particles through various B field shapes quesion
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Why does an electron shell further away from nucleus has higher energy?
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How Can I Determine the Value of Charges in Coulomb's Law?
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Why Does a Second Solenoid Feel a Strong Induction in Electromagnetic Induction?
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Step Up Transformer: Current AND Voltage Increased?
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Why Doesn't Current Flow Continuously When Magnetic Flux is Permanently Changed?
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The negative charge of the Earth
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Struggling with Electric force.... The Superposition Principle
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How are Lenz's law and Faraday's law connected?
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2
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Discovering Earth's Direction with Magnetic Needle Compass
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Finding the Electric Field of a Hollow Cylindrical Conductor
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2
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Relation between torque and magnetic moment
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Resonant frequency in acoustics
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4
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The Conditions for Biot-Savart Law to Ampere's Law
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How does a magnetic field induce an electric current?
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Can the temperature of an object be derived from the EM Wave
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As the frequency increases so does the energy Em wave carry
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Estimating magnetic field based on pull force
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Confused about electrostatic voltage and DC voltage
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1
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When a charged object is brought close to an uncharged one (attraction)
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Kinetic Energy of two positive charges flying apart
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Why does current still flow with no voltage?
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10
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Correcting Misconceptions about the Frequency of RF Pulses in MRI
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Zero-Divergence of Rate of Change of Magnetic Flux
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6
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Magnetic field strength for circular loop
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12
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Ferromagnetism - thought problem
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1
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Magnetic Flux in a Coaxial Cable
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1
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Electromagnetiic wave power transfer
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22
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USB power bank: How can both voltage and current be given
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4
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Magnetism, electricity, and photons
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11
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Voltage drop in an electric circuits
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6
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Would there exist capacitance if the speed of light....
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"Biot-Savart equivalent" of Faraday's Law?
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7
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Solenoid Magnetic Field calculation
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5
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How can a point charge exert force on itself?
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27
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5K
Current flow evenly in a conductor?
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10
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Ampere's law for a larger diameter?
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4
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Maxwell equations in terms of potentials
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9
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Direction of current? Pos to neg?
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13
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