The second of Maxwell's equations states that the divergence of the magnetic flux density is always zero, i.e. V B= 0. What does this tell you generally about the distribution of magnetic flux? Describe the impact of a non-zero value on the right-hand-side of Maxwell's second equation.
The second of Maxwell's equations states that the divergence of the magnetic flux density is always zero, i.e. V B= 0. What does this tell you generally about the distribution of magnetic flux? Describe the impact of a non-zero value on the right-hand-side of Maxwell's second equation.
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Transcribed Image Text:a) The second of Maxwell's equations states that the divergence of the magnetic
flux density is always zero, i.e. V B 0. What does this tell you generally
about the distribution of magnetic flux? Describe the impact of a non-zero
value on the right-hand-side of Maxwell's second equation.
b) With reference to Figure 2, the Biot-Savart law can be used to show that the
magnetic flux density due to a straight current-carrying wire of finite length is
given by
Hol
%3D
(cos a2 - cos a,) âg
477
Figure 2
Show that this expression is consistent with Ampère's law when applied to a
long straight current carrying conductor.
c) Figure 3 depicts a section of printed circuit carrying a current / of (100 +
10X) mA. The incoming and outgoing conductors are long, have negligible
width and are connected at their ends by a conductive bridge where d
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