Electromagnetism Forum

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How is the alternating electric potential produced in cyclotrons?
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6
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Calculating Current in a Diode Circuit with Given Voltages
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10
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3K
How Is Energy Flux Calculated in an Electromagnetic Wave?
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2
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3K
Electromagnetic wave propagation when blocked by metal
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5
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Is the Electric Field Inside an Irregular Shaped Conductor Always Zero?
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3
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Couple of Questions Regarding EM Waves
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1
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Faraday's law. Induced electric field.
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2
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Voltage measured across a capacitor with embedded charges
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8
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Electric circuits/voltage/resistor
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1
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Understanding Current: Definition and Comparison to Math-Defined Current
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4
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Is Maxwell's third law the proof of conservation of energy in E&M?
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2
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Solving Low Resistance Problem to Generate Magnetic Field
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9
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Magnetic field = 0 inside a conducting wire?
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1
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Voltage Vector/Scalar Components, SI Units, Direction and Polarity.
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1
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How to calculate power output in piezoelectric material?
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2
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Direction of magnetic field inside infinite slab
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1
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Is E in Maxwell-Equations really E ?
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11
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Relationship between force and Velocity in Magnetic Fields
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10
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6K
Is the Earth's Magnetic Field strong and does it fluctuate a lot
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2
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Recovering WWII magnetic amplifier technology
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8
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Faraday's law and gauss's law for magnetism apparent contradiction
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3
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Why don't fluorescent bulbs blow up when electricity is connected?
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15
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4K
Do magnetic fields have any effect on dielectric breakdown
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1
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How Do You Determine Magnetic Force Direction When Fields Aren't Perpendicular?
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2
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Electric field and gauss law for different models of sphere
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3
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2 solenoids: emf and frequency
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1
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What Magnetic field is generated
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8
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Electric field due to infinite sheet
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3
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8K
Why is there current induced on Faraday's disk?
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2
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Conversion of Voltage into Radiation counts
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12
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2K
Calculating the Field strength of a magnet at a certain distance
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1
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4K
Altitude where Earth's magnetic field will no longer affect a compass
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9
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11K
One misconception about magnets
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1
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2K
Could a magnetic charge make free energy?
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3
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1K
Idea of efficient electricity generating system model?
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1
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2K
Attraction between a charge and a magnet
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10
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How exactly do generators work (Please explain the Faraday's law)
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2
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What material is a poor conductor of electricity?
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13
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14K
Self consistent maxwells equations
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1
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What happens to power when voltage is negative
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10
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Need help with making sphere electromagnet
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22
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6K
Help with physics of my Magnet Motor
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3
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2K
Electrical resistivity tomography
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1
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Calculating electrical energy over time
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7
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Measuring RF Frequency in Hertz for Science Projects
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8
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2K
Calculation of the magnetic field ring current and the magnetic flux t
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2
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Refuting Perpetual Motion with Magnets
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1
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Why is the magnetic field perpendicular to the force?
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4
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The units for current density don't check out
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3
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L Science - Understanding Electron Orbitals and Their Role in Atomic Structure
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6
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What is the nature of electric charge and how does it relate to string theory?
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12
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2K
Magnetic Susceptibility VS. Relative Permeability
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3
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Counting Electrons & Protons in an Atom
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11
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2K
Does the concept of dipole moment of charged molecule exist or not?
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6
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5K
High voltage, where is the power?
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16
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3K
Capacitors in series and parallel
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5
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3K
Surface Charge Density - notation used
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1
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Alternating current and magnetic fields
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24
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6K
Why do we need to integrate to find electric field?
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6
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4K
Energy of an electromagnetic wave
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5
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2K
Will Magnetic Putty Form a Cube or Sphere When Swallowing a Rare Earth Magnet?
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1
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2K
Force need to break a magnetic lock
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2
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7K
How do electrons move in a circuit
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1
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5K
Griffiths Electrodynamics gradient of charge distribution
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6
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5K
Understanding Induced Current in Conducting Wires from Changing Magnetic Fields
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12
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Resonant Frequency of Open Ended Pipes with a Barrier Imposed
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2
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Voltage Difference Equation Terminology
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4
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A question in the energy of a capacitor
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5
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2K
Why is the flux through a closed surface zero with no charge inside?
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8
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6K
Why is voltage the same in a parallel circuit
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2
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3K
Electric field on the surface of uniformly charged spherical shell
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6
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5K
Electric Flux: What it is & Why it's Zero on a Cylinder
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1
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Energy conversion difference in permanent magnet vs. field coil motor
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1
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Why Is a Negative Sign Used in the Electric Potential of a Charged Sphere?
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4
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2K
Getting high current from AA batteries
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9
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What Magnetic Field Would be Generated from this Coil Layout (Picture)
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3
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Difference between W/Q and E/Q in Electricity
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23
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Question on sampling frequency/low pass filter
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1
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Net torque, electric dipole confusion
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1
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How to find the strength of an electromagnet
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2
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Lenz's law and elctromagnetic waves
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2
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Analytical equation for Magnetic Levitation
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3
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Scattering of an unpolarized photon off an electron
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8
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Would a magnetic charge have the same strength as a electric charge?
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3
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What Happens When an Uninsulated Wire Coils Around a Metal Object?
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18
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Do I have to re-define electric field strength in Centre of Mass frame
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5
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Duration of Charging a capacitor
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2
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Does the electric field make electrons?
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3
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Surface field vs pull force(attraction force) of multiple magnets?
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2
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Electric Flux of Concentric Spheres
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1
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Potential energy and magnetic torque
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1
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ADR for Middle School Science fair project (Magnetic Refrigeration)
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1
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How to calculate electric charge with a given electric potential?
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6
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Is angular frequency absolute?
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3
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Object detection through magnetic signature [field]?
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4
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Can a high voltage across a chamber ionize a gas?
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15
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How are Electromagnetic signals specified?
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2
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Net charge of a spherical capacitor
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1
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Suppose an electron was kept with an alpha particle at a finite
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18
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3K
Qualitative meaning of electric potential
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6
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4K

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