Maxwell's Life
Where was James Clerk Maxwell from?
Scotland
What does Gauss's law for magnetism state?
Divergence of magnetic field B is 0
Magnetic field from continuous loops
No isolated magnetic poles or magnetic charges
Name three of the usages of electromagnetism.
Define electromagnetism.
Electric currents produce their own magnetic field
Relation between electricity and magnetism
Name at least two properties of waves.
Wavelength, frequency, amplitude
Which universities did Maxwell attend?
University of Edinburgh, Cambridge
How do you pronounce this symbol? ∇
Del or Nabla.
Name any field that James Clerk Maxwell's studies on electromagnetism had an impact on.
Quantum mechanics, theory of relativity
What is a solenoid?
One long piece of wire with multiple coils
When was James Clerk Maxwell born?
13th of June 1831
How did Maxwell die?
Abdominal cancer
What do Maxwell's Equations describe?
Describes how electric and magnetic fields interact, move and behave
Incorporate electromagnetism with radios. Why are they related? Explain.
Radios use electromagnetic waves to transmit and receive signals
What's a wavelength?
The distance measured between two of the highest points in a wave
What is the right hand rule?
A test to determine the direction of the magnetic field
What's the name of Maxwell's wife?
Katherine Mary Dewar/Katherine Clerk Maxwell
What does the symbol 𝜌 represent in Gauss's law of electricity?
Electric charge density
What are electromagnetic waves?
Oscillating electric/magnetic fields, that move at the speed of light
In what unit is frequency measured in?
Hertz
What happens with the atoms, when magnets attract?
They align
When did Maxwell write his first paper, and what was it about?
At 14 years old/in 1846
“On the description of oval curves and those having a plurality of foci”
What does Faraday's law of electromagnetic induction state?
When a magnetic field changes over time, it creates an electric field in the surrounding space
Give a brief explanation of how a radio works.
Soundwaves – Converts to electric signals
Modulates onto carrier wave, process dependent on AM/FM
Transmits through the antenna of the radio station
Antenna captures electromagnetic wave
Amplified and sent to a speaker
What does 'concentric' mean?
Something, like circles, that have a common center.
Come up to the board and draw a bar magnet.
Field lines go from the north pole to the south pole