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- -- card: 137443 from stack: in
- -- bmap block id: 0
- -- flags: 4000
- -- background id: 7720
- -- name: #419
- ----- HyperTalk script -----
- on openCard
- global group,rightone
- put 42 into group
- put "C" into rightone
- pass openCard
- end openCard
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-
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- -- part contents for background part 20
- ----- text -----
- Question #42
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- -- part contents for background part 1
- ----- text -----
- 4AH-5.1 What are "electromagnetic waves"?
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- -- part contents for background part 11
- ----- text -----
- Alternating currents in the core of an electromagnet
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- -- part contents for background part 27
- ----- text -----
- A wave consisting of two electric fields at right angles to each other
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- -- part contents for background part 28
- ----- text -----
- A wave consisting of an electric field and a magnetic field at right angles to each other
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- -- part contents for background part 29
- ----- text -----
- A wave consisting of two magnetic fields at right angles to each other