Physics, 17.04.2020 05:29 nevaehkirk1997
An unusual lightning strike has a vertical portion with a current of –400 A downwards. The Earth’s magnetic field at that location is parallel to the ground and has a magnitude of 30 μT. In units of N (Newtons), the force exerted by the Earth’s magnetic field on the 25 m-long current is Group of answer choices 300 A, East. 0.30 A, West. 0 0.012 A, East. 0.012 A, West.
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An unusual lightning strike has a vertical portion with a current of –400 A downwards. The Earth’s m...
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