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Undergrad Charging an super/ultracapacitor from AAA batteries

  • ajd-brown
  • · Replies 9 ·
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9

Graduate Is a Resistor a Capacitor in a Simple Circuit with a DC Current?

  • Orthoceras
  • · Replies 5 ·
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5

Undergrad Charged particle focusing device

  • motorman
  • · Replies 2 ·
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2

Undergrad What are the units for magnetic pressure?

  • terryphi
  • · Replies 1 ·
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1

Graduate Modulate the voltage,current and frequency of photons

  • h3x3n
  • · Replies 6 ·
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6

Undergrad Work needed to move conductor in constant electric field

  • Nikitin
  • · Replies 1 ·
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1

Undergrad Comparing Series & Parallel Connections of Helmholtz Coils

  • strokebow
  • · Replies 5 ·
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5

Graduate Electromagnetically Charged Wave Light

  • Physicist50
  • · Replies 18 ·
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18

High School Little Question about magnetization and heat

  • rauven
  • · Replies 2 ·
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2

Undergrad Electric field of a uniformly charged disk

  • member 392791
  • · Replies 2 ·
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2

Graduate Phase relation between current and electromagnetic field generated

  • amir11
  • · Replies 1 ·
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1

Buy High Voltage Electron Guns Up to 40kV - Expert Advice

  • strokebow
  • · Replies 4 ·
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4

Undergrad Magnetic Shielding Strategies for Reducing Attraction Between Two Magnets

  • sonlinh
  • · Replies 8 ·
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8

Graduate Inertia and bicycle wheels related to wattage and time

  • E190
  • · Replies 8 ·
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8

Undergrad Explanation of common calculus examples

  • CraigH
  • · Replies 10 ·
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10

Undergrad How to create a eletromagnetic field with frequency?

  • mitocondrio
  • · Replies 9 ·
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9

Graduate What is the curl of a electric field?

  • back2square1
  • · Replies 2 ·
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2

Undergrad Why is voltage 0 in a short circuit?

  • alexmath
  • · Replies 2 ·
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2

Graduate Spherical Capacitor, equation for voltage

  • Number2Pencil
  • · Replies 3 ·
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3

Graduate Energy due to a charge is infinite?

  • A Dhingra
  • · Replies 7 ·
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7

Undergrad Understanding Voltage: Basics of Circuit Analysis

  • mmango
  • · Replies 8 ·
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8

Graduate Magnetic dipole moment energy question

  • facenian
  • · Replies 2 ·
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2

High School Electric Shock Risk From AC Generator: Can You Touch 1 Terminal?

  • rohitm95
  • · Replies 7 ·
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7

High School Why is my LED glowing without any input when using 7402 ic?

  • sandeepmrocks
  • · Replies 2 ·
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2

High School Calculating the strength of a magnetic field in a electromagnet

  • balexan
  • · Replies 4 ·
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4

High School Power a led with piezoelectricty

  • ninja.lion
  • · Replies 13 ·
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13

Graduate Cauchy's Integral Formula and Ampere's Law - Any Connection?

  • brandon_1892
  • · Replies 1 ·
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1

High School How exactly do you find the net force between charges?

  • paki123
  • · Replies 1 ·
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1

Undergrad Questions about electrostatic charge

  • Menaus
  • · Replies 4 ·
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4

Undergrad Single electron single slit interference

  • cubozoan
  • · Replies 6 ·
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6

Graduate Speed of light in lossy dielectric medium

  • WhiteHaired
  • · Replies 2 ·
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2

Graduate Potential formulation of Electrodynamics with magnetic sources

  • cosmic dust
  • · Replies 7 ·
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7

Undergrad Why is charge a derived quantity

  • mc2_phy
  • · Replies 6 ·
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6

Undergrad Magnet through a copper coil - What if poles rotated 90 degress

  • jtotheroc
  • · Replies 1 ·
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1

High School What is the relationship between these

  • mc2_phy
  • · Replies 2 ·
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2

Graduate Action = reaction and lorenz force

  • 0xDEADBEEF
  • · Replies 20 ·
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20

Undergrad Robot Project: Shielding Electronics in HV Environment

  • stefanb1
  • · Replies 12 ·
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12

Undergrad Capacitance of Wire Loops: Formula for Equal Radii R

  • csopi
  • · Replies 3 ·
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3

Undergrad Are parallel flux lines necessary for C-EMF generation?

  • Miyz
  • · Replies 19 ·
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19

Undergrad Rolling Resistance - proportional to speed?

  • Kuklish
  • · Replies 8 ·
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8

Graduate Probability distribution using the Maxwell Boltzmann formula

  • Sonor@12
  • · Replies 2 ·
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2

Undergrad Photoelectric effect and Compton scattering difference

  • hms.tech
  • · Replies 8 ·
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8

Undergrad Is the magnetic field a mathematical abstraction?

  • rainstom07
  • · Replies 5 ·
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5

Graduate Why am I having trouble with the RC circuit analysis?

  • schaefera
  • · Replies 4 ·
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4

Undergrad Harness energy of Earth magnetic field?

  • Stanley514
  • · Replies 16 ·
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16

Undergrad What is the heat current from the sun to a unit area on Earth?

  • Pepealej
  • · Replies 2 ·
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2

Undergrad Where are the sum and difference frequencies in AM transmission?

  • Drakkith
  • · Replies 25 ·
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25

Undergrad Len'z law and a interesting video

  • Miyz
  • · Replies 1 ·
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1

High School How to discharge a clear plastic film roll ? : (

  • smilegr8
  • · Replies 10 ·
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10

Undergrad Electric Field Lines Can't Cross Each Other?

  • Bashyboy
  • · Replies 6 ·
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6

Undergrad What does +ve charge in conductor means, do they move

  • dexterdev
  • · Replies 17 ·
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17

High School Gravity & Magnetism: Does it Affect Electrical Charges & Coils?

  • Hey there
  • · Replies 1 ·
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1

Graduate Reactive power with electromagnetic sources in free space

  • EmilyRuck
  • · Replies 7 ·
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7

Undergrad How does an electron carry energy in a circuit?

  • 4 Ton Mantis
  • · Replies 5 ·
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5

Graduate Instananeous frequency of a chirp signal is halved?

  • Luongo
  • · Replies 2 ·
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2

Graduate Relationship between current and current density for a volume conductor

  • Cole A.
  • · Replies 2 ·
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2

Graduate Question on characterization of elliptical polarization of EM wave.

  • yungman
  • · Replies 3 ·
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3

Undergrad Electrical Appliance working on alternating current

  • ioioio7777
  • · Replies 2 ·
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2

Undergrad Electric Flux Theory & Superposition | Find Electric Field at P

  • maiad
  • · Replies 3 ·
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3

Graduate Thermoelectric Emf: Investigating Temperature Dependency

  • Ezio3.1415
  • · Replies 9 ·
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9

Graduate How Does Radio Wave Impact on Ionospheric Electron Integrate in Physics?

  • Astrum
  • · Replies 1 ·
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1

Graduate How do electrons move? [Please read]

  • Ziggs
  • · Replies 2 ·
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2

Undergrad There will be current when diode is reverse biased

  • PainterGuy
  • · Replies 11 ·
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11

Undergrad Understanding the Role of Grounding in AC Single Phase Systems

  • klmnopq
  • · Replies 41 ·
2
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41

Undergrad RFID induction question and frequency

  • mitocondrio
  • · Replies 1 ·
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1

Graduate What Is Flux? Scalar or Vector? Difference Between Flux and Flux Density

  • shivaniits
  • · Replies 5 ·
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5

High School Hand contact with capacitor negative (excess of electrons) terminal only.

  • Aspenforest
  • · Replies 1 ·
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1

Graduate Resonant frequency of a human body

  • shpresa
  • · Replies 8 ·
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8

Graduate Photomagnetic Effect: Can It Be Achieved at Room Temp?

  • Young Learner
  • · Replies 4 ·
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4

Undergrad Finding the frequency of an arbitrary, time-varying load

  • GoshDarn
  • · Replies 3 ·
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3

Undergrad What instruments did gauss use to measure flux / electric fields?

  • robinhood20
  • · Replies 3 ·
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3

Graduate Understanding Precession in B Field: Torque and Electron Motion Explained

  • Nemanja989
  • · Replies 15 ·
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15

High School Confused on the Electrical Energy Formula?

  • 012anonymousx
  • · Replies 1 ·
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1

Undergrad Gauss Law and Electric Field of a Dipole

  • Dr_Pill
  • · Replies 3 ·
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3

High School Can you strip away electrons completely from atoms?

  • GreenAce92
  • · Replies 11 ·
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11

Graduate Thrust Generation Using Lorentz Force: A Power Requirement Analysis

  • MagnetoBLI
  • · Replies 14 ·
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14

Graduate Maxwell-Boltzmann speed distribution derivatives

  • devious b
  • · Replies 2 ·
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2

Graduate Electromagnetic hamiltonian factor of 1/c question

  • copernicus1
  • · Replies 4 ·
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4

Graduate Gauge Choice and Consistency with EOMs

  • EuphoGuy
  • · Replies 1 ·
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1

High School How can I power a Peltier Thermoelectric Cooler

  • zmillerkoren
  • · Replies 1 ·
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1

Undergrad Distance dependence in Ampere's force law

  • Sunfire
  • · Replies 3 ·
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3

Undergrad Can electromagnets create a variable magnetic spring?

  • shy_barbarian
  • · Replies 6 ·
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6

Undergrad Is the Lenz Effect in a superconducting magnet strong enough to stop a bullet?

  • stevenstritt
  • · Replies 1 ·
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1

Graduate Origin of the equation c^2=1/epsilon_0*mu_0

  • Sunfire
  • · Replies 8 ·
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8

Undergrad How Do Neodymium Cores Affect Solenoid Power and Efficiency?

  • shy_barbarian
  • · Replies 1 ·
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1

Undergrad Why is V the symbol for voltage?

  • spareine
  • · Replies 11 ·
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11

High School A question regarding batteries

  • christian0710
  • · Replies 1 ·
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1

High School What does it mean to have a charge?

  • TheRingBarer
  • · Replies 2 ·
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2

Graduate Understanding Expansion, Compression and Entropy Coefficients

  • tsuwal
  • · Replies 2 ·
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2

Undergrad What electromagnetic range would disrupt a neodymium magnet?

  • armoredasm
  • · Replies 6 ·
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6

Undergrad Charging a Capacitor with High Frequency DC voltage

  • gedfire
  • · Replies 34 ·
2
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34

High School Resonance frequency and Natural frequency?

  • tksxkdhkd11
  • · Replies 6 ·
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6

Undergrad Capacitors: How do they store energy ?

  • hms.tech
  • · Replies 18 ·
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18

Undergrad Why isn't a hydroelectric dam considered perpetual motion?

  • jaydnul
  • · Replies 5 ·
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5

Graduate Is there a material that can emit gamma radiation when heated by electricity?

  • Bararontok
  • · Replies 12 ·
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12

Undergrad What Does "Distributed" Mean in Faraday's Law?

  • jaumzaum
  • · Replies 1 ·
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1

Undergrad Is Energy proptional to frequency(standing wave)

  • hms.tech
  • · Replies 11 ·
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11

Undergrad Proof of natural frequency in RCL circuit

  • alanchakhin
  • · Replies 5 ·
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5

Undergrad Examples of systems that generate C-EMF?

  • Miyz
  • · Replies 1 ·
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1

Graduate Help: From Ampere to Coulomb in SI units

  • Sunfire
  • · Replies 1 ·
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1