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Eddy current question

by likephysics
Tags: current, eddy
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likephysics
#1
Jun19-14, 01:46 AM
P: 615
Need to refresh my understanding on eddy current.
Does every metal exhibit eddy current when it comes across a Mag field?
If this is the case, then why do induction cook tops required ferrous utensils.
A Metal detector also works on the principle of eddy current. correct?
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Simon Bridge
#2
Jun19-14, 03:05 AM
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There is quite a lot online about eddy currents, have you tried looking it up?
1. yes - provided the B-field changes
2. the heat depends on resistivity as well as current
3. yes - amongst others


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