Radio astronomers detect electromagnetic radiation at 42.0 MHz from an interstellar gas cloud. They suspect this...
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Radio astronomers detect electromagnetic radiation at 42.0 MHz from an interstellar gas cloud. They suspect this radiation is emitted by electrons spiraling in a magnetic field. |
Part A What is the magnetic field strength inside the gas cloud? Express your answer with the appropriate units.
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Homework Answers
The cyclotron frequency = q*B/(2πm)
so B = 2πm*f/q
= 2π*9.11x10^-31*42x10^6/1.60x10^-19
= 1.502x 10^-3 T
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