Physics, 15.04.2020 17:18, baleycardell9901
Although the evidence is weak, there has been concern in recent years over possible health effects from the magnetic fields generated by electric transmission lines. A typical high-voltage transmission line is 20m above the ground and carries a 200 A current at a potential of 110 kV. What is the magnetic field strength on the ground directly under such a transmission line?Express your answer to two significant figures and include the appropriate units. B =What percentage is this of the earth's magnetic field of 50 ?T?Express your answer to two significant figures and include the appropriate units. Bwire Bearth =-
Answers: 1
Physics, 22.06.2019 02:00, apalacios3503
Which safety measures should you follow during a thunderstorm? check all that apply. (a) avoid touching anything that conducts electricity. (b) avoid touching a person who has been struck by lightning. (c) go outside. (d) keep your computer turned off. (e) stay out of water. (f) stay inside.
Answers: 2
Although the evidence is weak, there has been concern in recent years over possible health effects f...
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