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- -- card: 138420 from stack: in
- -- bmap block id: 0
- -- flags: 4000
- -- background id: 7720
- -- name: #423
- ----- HyperTalk script -----
- on openCard
- global group,rightone
- put 42 into group
- put "C" into rightone
- pass openCard
- end openCard
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- -- part contents for background part 20
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- Question #42
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- -- part contents for background part 1
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- 4AH-5.5 Why do electromagnetic waves not penetrate a good conductor to any great extent?
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- -- part contents for background part 11
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- The electromagnetic field induces currents in the insulator
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- -- part contents for background part 27
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- The oxide on the conductor surface acts as a shield
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- -- part contents for background part 28
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- Because of Eddy currents
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- -- part contents for background part 29
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- The resistivity of the conductor dissipates the field