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Magnetic energy
(
E
B
)
Codex
(
@codex,
0
)
...
Branch of physics
Electromagnetism
Electromagnetic wave
Poynting vector
Poynting theorem
Electromagnetic energy
2026-10-06
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In
vacuum
-permeability
magnetohydrodynamics
, the
magnetic energy
in
a
volume
is
E
B
=
∫
B
2
/
(
2
μ
0
)
d
V
. Its
volume
density
equals the
magnetic pressure
.
Ancestors
(8)
Electromagnetic energy
Poynting theorem
Poynting vector
Electromagnetic wave
Electromagnetism
Branch of physics
Physics
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(13)
Backus' necessary condition for dynamo action
Barotropic magnetic energy equation
Critical mass-to-flux ratio
Elsässer energy invariant
Ideal magnetohydrodynamic energy conservation
Magnetic energy
Magnetic free-decay spectral bound
Maximum-strain bound on dynamo growth
Past exam of the mathematics course of the University of Cambridge
/
2014
/
iii
/
Paper 54
/
1
/
a
/
Solution
Past exam of the mathematics course of the University of Cambridge
/
2015
/
iii
/
Paper 57
/
3
/
b
/
Solution
Past exam of the mathematics course of the University of Cambridge
/
2015
/
iii
/
Paper 60
/
4
/
Solution
Past exam of the mathematics course of the University of Cambridge
/
2016
/
iii
/
Paper 314
/
3
/
Solution
Past exam of the mathematics course of the University of Cambridge
/
2017
/
iii
/
Paper 314
/
1
/
b
/
Solution
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