Electromagnetism Forum

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Does a magnetic flux tube always have a current flowing through it?
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2K
Light bulb uses current or resistance?
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16
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4K
Are Photovoltaic Cells Considered Ohmic Devices?
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5
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3K
Magnetic field at center of half square
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Why do photons/electrons scatter at angles in compton scattering?
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3
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Intuition for Capacitor placed in parrallel or in series
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Force experienced by a current-carrying conductor placed in a magnetic field
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Capacitor Shorting over aluminum.
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5
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500amps in parallel wires -resistance change?
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9
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4K
Question about magnetic fields and magnetic forces
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10
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Zipline Diameter Pulley Friction/ Rolling Resistance
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1
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3K
Make electricity using your backyard stream
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5
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3K
Magnetic force in a moving inertial reference frame
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12
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9K
Charges moving parallel to magnetic fields and direction of magnetic force
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Generating magnetic field with Plasma
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How voltage amplification affects plasma flux density?
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What Voltage is Needed to Ionize Helium in Plasma Globes?
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3
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Maxwell's Demon: would a cone work?
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6
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Understanding the Effects of Electric and Magnetic Fields on Moving Charges
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Variation in EMF of a magnet moving through a Coil
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Why Don't Electrons Replace Protons in MRI Imaging?
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34
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12K
Do magnetic poles of an object have to be perpendicular to the object's surface?
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6
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What holds conducting electrons from flying off into vacuum
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Earth's Magnetic Field components in a region
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2
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Wavelength vs. Frequency Modulation
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2
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At what voltages does arcing occur?
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8
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Simple Voltaic Cell: Alessando Volta's Electrolytic Cell
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9
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Maxwell's equations and electromagnetic (waves)
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7
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Can TdS be computed using an area, time double integral of heat flux density?
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1
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2K
Magnetic Field Energy: Is It Greater to Push than Pull?
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3
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3K
How do you measure voltage of cell?
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6
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3K
Capacitor & Resistor: Connecting in Parallel w/ Battery
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15
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Motion of a charged particle in a uniform magnetic field
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4
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4K
Doppler Frequency Equation Question
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1
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What Is The Relationship Between Temperature and Magnetic Force?
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4
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8K
Understanding the Relationship Between Resistance and Voltage in Ohm's Law
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11
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4K
When an object becomes very cold do the electrons stop revolving ?
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1
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Object being magnetise from afar
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2
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Converting Watts, Distributed Over An Area, To Energy Density
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3K
You can slow the group velocity of light. Can you slow electricity?
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2
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Distribution of current in a conductive plate
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4
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Bombing a conductor with a stream of electrons
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1
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Finding Distance Using a Fuse, Current & Magnetic Field
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1
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Calculating heat generated by a resistance wire
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4
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4K
Infinite current sheet: current suddenly turned on
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11
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7K
What is a Nyquist in Terms of Frequency?
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3
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2K
Why on a oscilloscope does a.c current have a sine wave, whereas a d.c
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3
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3K
What is the Frequency of Sound in Air at 11°C with a Wavelength of 4m?
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2
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Does copper or aluminum sheet block magnetic signal?
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7
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27K
What is more important? Power or voltage?
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4
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Acceleration of orbiting electrons in magnetic field.
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10
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Magnetic Fields Around Earth: Effects on Smaller Magnetic Fields
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4
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Any difference between induced EMF of an air coil vs with magnet core?
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11
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4K
How Do Magnets Work At an Atomic Level (Motion of Charged Bodies)?
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AP Physics: Understanding Ampere's Law for Wires and Solenoids
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11
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Electromagnetic field from electric engine
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Does Dielectric Polarization Affect AC Transmission or Is It the Frequency?
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8
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Observing Oscillating Charges: Effects on Energy
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4
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Light bulb & photovoltaic cell & power transformer combo for FREE energy
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6
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3K
Resistor - Capacitor - Resistor
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3
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2K
I understand that resisters slow current down. I have not read yet
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6
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Would magnetic monopoles violate the conservation of energy?
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16
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5K
Discharging capacitor in RC circuit
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13
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Parallel Vs. Series - Capacitance?
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9
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4K
Are two magnets twice as strong as one?
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1
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4K
What are some Thermoelectric experiments?
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1
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Differences between Electromagnetic flux and magnetic flux
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3
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Positive and negative electrical terminals
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7
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Breakdown voltage of multiple materials
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18
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Accelerating charged particle radiation reaction
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Trend of Electromagnetic Temperature
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3
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Electromagnetic poles- repelling
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10
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Electromagnetic field strength
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4
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What happens with the electrical energy within the body when we die?
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4
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Electric field in magnetostatics?
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5
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Can Electricity Flow Without a Complete Circuit?
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26
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AC Magnetic Field (solenoid) ID OD L AmpTurns Relationship
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Speed of Electron - How Fast Does it Travel?
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3
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Why Does Voltage Versus Energy Exchange in an Electromagnet Show a Linear Trend?
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3
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Building a Capacitor: Plate Separation & Dielectrics
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3K
Outside the Electromagnetic Spectrum
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4
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Coulomb law for moving charges
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16
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Magnet in a AC current solenoid
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3
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Potential difference of capacitor in circuit
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16
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What really happens when charging a capacitor?
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2
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Flux Linkage - what, where, why?
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2
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Understanding Mass & Resistance: Basics Explained
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16
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Understanding Units of ln Voltage to Logarithmic Quantities
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18
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16K
Induced emf in a solenoid from a current carrying wire nearby
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3
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Salt water and tap water conducting electricity - help appreciated
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7
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The Mystery of Voltage Increase & Current Decrease
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10
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17K
Dielectric effect on induced electric field.
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1
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Basic questions of electromagnetic radiation
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3
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Electric Potential(V) and Electric Potential Energy(U) laws
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3
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Fundamental and basic physics questions on flux lines
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15
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Capacitors, Entropy & Energy Loss
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7
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Solenoid + Transformer + Current buildup interval
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1
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Eddy current in an infinitely long cylindrical conductor in an solenoid
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17
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7K
Why don't magnets violate conservation of energy?
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13
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18K
What charges on my hair after comb?
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3
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8K

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