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Undergrad Klystrons which are used as amplifiers

  • Lisa!
  • · Replies 6 ·
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6

Undergrad How would you calculate air resistance from a projectile

  • brandy
  • · Replies 1 ·
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1

Undergrad What is Voltage? Elaborated Question Explained

  • martian22
  • · Replies 32 ·
2
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32

Graduate Questions on ferromagnetism and attraction

  • FieldOpsGirl
  • · Replies 1 ·
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1

Undergrad Does light exhibit dispersion in a vacuum?

  • Starwatcher16
  • · Replies 1 ·
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1

Undergrad Do Electric Lines of Force Determine Charged Particle Trajectories?

  • siddharth5129
  • · Replies 8 ·
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8

Undergrad Force on a Permanent Magnet Falling through a Coil

  • BryanFantana
  • · Replies 3 ·
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3

Graduate Capacitance of Non-parallel plate capacitor

  • sairajan
  • · Replies 11 ·
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11

Undergrad How does increasing voltage lower current in a transformer?

  • fawk3s
  • · Replies 6 ·
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6

Undergrad COMSOL electrostatics question

  • seang
  • · Replies 1 ·
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1

Undergrad Antenna Gain: Dependence on Ray Direction?

  • whitenight541
  • · Replies 9 ·
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9

Graduate How Should Frequency X and Y Be Described in SCENAR Therapy?

  • zephiloyd
  • · Replies 6 ·
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6

Undergrad Couple questions regarding batteries

  • DocZaius
  • · Replies 13 ·
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13

Undergrad How can I determine the necessary magnetic force to accelerate a metal bar?

  • pedro.duarte
  • · Replies 2 ·
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2

High School Dangers of high current/voltage?

  • user111_23
  • · Replies 3 ·
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3

Undergrad Why does negative charge reduce the potential of a metal plate in a capacitor?

  • logearav
  • · Replies 2 ·
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2

Undergrad Why does the induced emf in an inductor increase when the circuit is opened?

  • arpan251089
  • · Replies 7 ·
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7

Graduate Charge density and electromagnetics

  • GRB 080319B
  • · Replies 4 ·
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4

Undergrad Rolling Resistance: A Trickier Term Than You Might Think

  • Cyrus
  • · Replies 11 ·
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11

High School Can Circuit Component Order Affect Electrical Outcomes?

  • ninjadrummer8
  • · Replies 3 ·
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3

Graduate Numerical methods in magnetostatics

  • jadelsky
  • · Replies 2 ·
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2

Graduate I am looking for the B-field of a real coil.

  • 0xDEADBEEF
  • · Replies 2 ·
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2

High School Harm of discharge of thunder in village is worse than cities?

  • pmehnati
  • · Replies 2 ·
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2

Undergrad Hakk effect gauss meter practice

  • cataldo
  • · Replies 2 ·
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2

Graduate How do magnetic fields provide thermal insulation

  • Ian_Brooks
  • · Replies 6 ·
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6

High School How many electrons in an orbital?

  • Jules18
  • · Replies 2 ·
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2

Graduate Electromagnetic wave constituents

  • soup_
  • · Replies 4 ·
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4

Undergrad Referenced in this thread in many places Need this material

  • sairajan
  • · Replies 1 ·
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1

Undergrad Basic physics, interactions between multiple electrons

  • tja2468
  • · Replies 3 ·
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3

Undergrad A flaw in the wavelenght/frequency formula? FTW?

  • potmobius
  • · Replies 2 ·
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2

High School Is it possible to create a negative charge in fabric?

  • rvr1974
  • · Replies 1 ·
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1

Undergrad Droplet's motion in electric field and gravitational field?

  • Aladin
  • · Replies 2 ·
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2

Graduate EM Shielding Dilemma: Understanding Transverse Wavelengths

  • invisigo
  • · Replies 4 ·
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4

High School When would a circuit be nonohmic ?

  • Jules18
  • · Replies 3 ·
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3

High School Does Magnetic Flux Bend When Two Magnets are Taped Together?

  • wbrad320
  • · Replies 9 ·
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9

Undergrad Can metal shavings orbit around a wire in a magnetic field-free room?

  • Jules18
  • · Replies 3 ·
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3

High School Uncovering Heinrich Hertz: The First to Generate EM Waves in a Lab

  • Jules18
  • · Replies 2 ·
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2

Graduate Capacitance of a cylindric capacitor (only a piece)

  • henry7512
  • · Replies 3 ·
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3

High School Radio Waves: What Can & Can't They Pass Through?

  • gonegahgah
  • · Replies 6 ·
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6

High School Difference between an inductor and a solenoid

  • Jules18
  • · Replies 3 ·
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3

High School How Does Glitter Adhere to Plastic in Automated Crafting Machines?

  • Stat_1123
  • · Replies 6 ·
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6

Graduate Why is the electrodynamic Lagrangian E^2 - B^2?

  • heinz
  • · Replies 2 ·
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2

Graduate I'm too uneducated to disprove my magnetic mechanical idea.

  • JeffZoskinsky
  • · Replies 4 ·
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4

Undergrad Why Does Transformer Coil Ratio Halve Current Despite Doubling Voltage?

  • Yuqing
  • · Replies 1 ·
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1

High School Check my understanding of voltage please

  • user111_23
  • · Replies 2 ·
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2

Undergrad Can Charges Remain Forever on Insulated Objects?

  • wiredGuy
  • · Replies 1 ·
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1

Graduate Magnetic field in an AC Solenoid Coil

  • chitrageetam
  • · Replies 11 ·
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11

Graduate Magnetism, Gravity and Critical Momentum

  • PRD
  • · Replies 1 ·
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1

Undergrad How does changing flux produce a field.

  • Yuqing
  • · Replies 6 ·
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6

Outdoor electronic soundproofing

  • AnnieH
  • · Replies 4 ·
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4

Graduate PLEASE HELP. VB particle sim. Rate of neutrilization of charge

  • jibrownie
  • · Replies 1 ·
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1

Undergrad Photoelectric Effect and Temperature.

  • Jules18
  • · Replies 5 ·
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5

Graduate Electron/positron annihilation/momentum

  • granpa
  • · Replies 48 ·
2
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48

Graduate Gravitation and electromagnetism is unified by Kaluza-Klein theory

  • joychandra
  • · Replies 1 ·
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1

Undergrad Any deep cause of magnetic field

  • Nikaro
  • · Replies 6 ·
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6

Undergrad Magnetic Forces and Work: An Explanation

  • lugita15
  • · Replies 34 ·
2
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34

Graduate What Determines the Orientation of Magnetic Fields in TE Modes?

  • casacasa
  • · Replies 2 ·
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2

High School Why do electrons have more kinetic energy when closer to the nucleus?

  • dolimitless
  • · Replies 7 ·
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7

Undergrad Power Output in Torque and Angular Velocity

  • yamvmax
  • · Replies 1 ·
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1

Graduate Metal sphere torn apart in electric field

  • krishna mohan
  • · Replies 6 ·
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6

Graduate Can magnetic dipoles have potential energy?

  • averin
  • · Replies 1 ·
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1

High School Interesting Magnetix Set Question

  • KrakaJap
  • · Replies 4 ·
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4

Undergrad Magnetic Permeability: Definition & Meaning

  • omri3012
  • · Replies 1 ·
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1

Graduate How Do Electrostatic Fields Differ Between 2D and 3D Dimensions?

  • starzero
  • · Replies 2 ·
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2

Undergrad Charge is Relative: Polarity in an Electron System

  • dE_logics
  • · Replies 14 ·
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14

Undergrad A confusion about Energy and Capacitors

  • TheWind777
  • · Replies 7 ·
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7

Graduate Does Biot-Savart law apply at high frequencies?

  • apchar
  • · Replies 4 ·
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4

Undergrad Transformer: secondary coil question

  • Mr Virtual
  • · Replies 15 ·
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15

Undergrad What is the maximum charge that can be put on a charged aluminum sphere?

  • Frogmansailor
  • · Replies 2 ·
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2

Graduate How Do We Distinguish Poles in Liquid State Magnets?

  • monty37
  • · Replies 4 ·
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4

Graduate Bh loop of steel at various ferquencies

  • pfaisalbe
  • · Replies 2 ·
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2

High School Welding Magnets: Does Like Poles Repel?

  • monty37
  • · Replies 8 ·
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8

High School What Are the Magnetic Lines of Force and Why Do They Curve?

  • abccbaabc014
  • · Replies 8 ·
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8

Graduate Does the gravitational field have energy like the electric field ?

  • Bergstein
  • · Replies 34 ·
2
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34

Undergrad Kinetic Energy and Electron Flow Speed

  • Yuqing
  • · Replies 4 ·
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4

Graduate Bunch of electrons - is it visible?

  • Nick89
  • · Replies 9 ·
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9

Undergrad Ampere's law and biot-savort law

  • likephysics
  • · Replies 1 ·
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1

Undergrad Magnetisation in Ferromagnets: Understanding Hysteresis Loop

  • omri3012
  • · Replies 2 ·
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2

Undergrad Determining Capacitance from Dimensional Analysis of V(t)

  • Nusc
  • · Replies 26 ·
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26

Undergrad Understanding Charge: What are Electrons and Protons?

  • earamsey
  • · Replies 15 ·
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15

Undergrad Dielectric Constant K & Plate Charge Density

  • dharm0us
  • · Replies 9 ·
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9

Undergrad Demagnetizing Field Explained - What is It & How?

  • sokrates
  • · Replies 2 ·
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2

Graduate Two sets of waves in a Hertzian Dipole?

  • barton
  • · Replies 3 ·
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3

Undergrad Thought experiment with static electricity

  • credirt
  • · Replies 1 ·
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1

Undergrad What is the explanation for the alternating current of 60Hz in household supply?

  • Cyrus80772
  • · Replies 18 ·
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18

High School Does the movement of protons create a magnetic field?

  • Topher925
  • · Replies 6 ·
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6

Graduate Is Maxwell's Electrodynamic Theory Violated?

  • koja6049
  • · Replies 2 ·
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2

Graduate Frequency higher then plasma frequency

  • Thierry12
  • · Replies 3 ·
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3

Undergrad Can Alnico Magnets Undergo Pole Reversal with a Magnetizer?

  • zydubion1
  • · Replies 1 ·
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1

Graduate Force on point magnetic dipole

  • Defennder
  • · Replies 5 ·
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5

Undergrad How to find charge given voltage?

  • HarryWertM
  • · Replies 17 ·
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17

Undergrad Higher dielectric constant : better insulator

  • dharm0us
  • · Replies 3 ·
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3

Undergrad How does frequency affect energy delivery in sine wave generators?

  • jainabhs
  • · Replies 4 ·
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4

Graduate Force Magnetic Dipole: Electric Current vs Magnetic Pole Model

  • da_willem
  • · Replies 7 ·
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7

Undergrad Series LC Circuit: Charging Capacitor & Current Flow w/ 0V Inductor

  • likephysics
  • · Replies 3 ·
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3

Undergrad How Does Temperature Affect Electromagnetic Waves?

  • jainabhs
  • · Replies 1 ·
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1

High School Alternating Current. (When can we see it?)

  • ScienceNerd36
  • · Replies 3 ·
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3

Undergrad Can I calculate magnetic force of a magnet?

  • hadroneater
  • · Replies 3 ·
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3

High School Why Do Parallel Wires with Currents Attract or Repel Each Other?

  • ankur29
  • · Replies 10 ·
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10

High School Calculating Current Through a Parallel Resistor Circuit: Help Needed

  • jenzao
  • · Replies 3 ·
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3