In 1996, NASA performed an experiment called the Tethered Satellite experiment.

Question

In 1996, NASA performed an experiment called the Tethered Satellite experiment. In this experiment a 2.30 times 104-m length of wire was let out by the space shuttle Atlantis to generate a motional emf. The shuttle had an orbital speed of 7.80 times 103 m/s, and the magnitude of the earth's magnetic field at the location of the wire was 4.60 times 10-5 T. If the wire had moved perpendicular to the earth's magnetic field, what would have been the motional emf generated between the ends of the wire?

Explanation / Answer

Faraday's Law:

emf = BLv = (4.6 x10^-5) (2.3 x 10^4) (7.8 x 10^3)
= 8252.4 volts

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