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Electromagnetism
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Why does an electromagnet attract iron according to Special Relativity?
August 14th, 2022
electric-fields
electromagnetism
special-relativity
magnetic-fields
Exact formula in simplest terms for Magnetic field at a point outside a solenoid
September 20th, 2022
homework-and-exercises
electromagnetism
Current Carrying Coil - Torque
March 20th, 2020
electromagnetism
homework-and-exercises
How do I find the flux through a sphere which is off centre with respect to a charge?
August 7th, 2020
electrostatics
electromagnetism
gauss-law
What is the difference between an electric field and gravitational field?
September 17th, 2020
coulombs-law
newtonian-gravity
electrostatics
electromagnetism
gravity
Is the electric dipole moment a mathematical construct or does it have a counterpart in reality?
December 30th, 2020
dipole-moment
electric-fields
electromagnetism
Coil Inducing a Back Emf in its Own Circuit
September 24th, 2020
electromagnetism
electricity
electric-circuits
electric-current
electromagnetic-induction
Finding the vector potential of an infinite cyclinder with uniform surface current
March 10th, 2020
electromagnetism
magnetostatics
magnetic-moment
magnetic-fields
homework-and-exercises
a metal bar on a pair of conducting rails that carries a current
March 1st, 2020
homework-and-exercises
electromagnetism
electric-circuits
Calculating the magnetic flux density of a thin, flat conductor
August 6th, 2020
homework-and-exercises
electromagnetism
Wouldn't $D = \epsilon E$ mean that a higher permittivity constant gives a higher electric flux? (And what exactly is the displacement field?)
March 5th, 2020
electromagnetism
electrostatics
electric-fields
when the current flow through a resistor, what does it lose?
September 27th, 2020
energy
electric-circuits
electromagnetism
electric-current
Experimental verification of the value of permittivity of free space
May 20th, 2021
experimental-physics
electrostatics
electromagnetism
Currents induced by rotation of a coil about magnetic field lines
November 3rd, 2020
electric-current
electromagnetism
induction
magnetic-fields
Maximum electric field of a circular ring
December 26th, 2020
differentiation
homework-and-exercises
electromagnetism
electrostatics
Help finding an alternative to the time average of the Poynting vector
April 26th, 2020
electromagnetism
poynting-vector
electromagnetic-radiation
waves
optics
Force per unit length between two long parallel wires, one of which is insulated
November 29th, 2020
electromagnetism
electrostatics
electric-fields
capacitance
dielectric
Is electromotive force really a force?
May 19th, 2020
soft-question
electromagnetism
terminology
history
How can you use magnets to rotate a shaft, which in turn powers a generator?
March 10th, 2020
electromagnetism
power
Two masses connected to a spring separated are charged to q Coulombs
March 11th, 2020
homework-and-exercises
electromagnetism
electrostatics
Transformers: relation between their current, voltage and resistance
December 15th, 2020
electromagnetism
electric-current
voltage
power
Point where resulting magnetic field is equal to 0
December 11th, 2020
electromagnetism
homework-and-exercises
magnetic-fields
Classical force keeping electron in orbit around proton in hydrogen atom
June 25th, 2020
electromagnetism
atomic-physics
coulombs-law
hydrogen
Conceptually, why does an electric field not require a charge flowing through it?
September 2nd, 2020
electricity
electromagnetism
electric-fields
Induced current and Ohm's law
March 16th, 2020
induction
electric-current
electromagnetism
What about electromagnetic waves of power cables?
December 13th, 2020
electromagnetism
frequency
electromagnetic-radiation
waves
How to find volume charge density from Electric field
February 4th, 2020
homework-and-exercises
electromagnetism
gauss-law
Would a DC motor not work if using a bare copper wire?
April 13th, 2020
electromagnetism
electricity
magnetic-fields
How to distinguish between normal and anomalous Zeeman effect?
September 20th, 2020
atomic-physics
electromagnetism
magnetic-fields
solid-state-physics
How to transfer energy from a generator to a storeage battery
August 1st, 2022
electromagnetism
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