1. An electromagnetic wave is traveling straight down toward the center of the E
ID: 3897930 • Letter: 1
Question
1. An electromagnetic wave is traveling straight down toward the center of the Earth. At a certain moment in time the electric field points west. In which direction does the magnetic field point at this moment?
North
South
East
West
Up
Down
2. If the intensity of an electromagnetic wave doubles,
the electric field must also double.
the magnetic field must also double.
both the magnetic field and the electric field must increase by a factor of sqrt(2).
Any of the above.
North
South
East
West
Up
Down
Explanation / Answer
The first answer is North
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