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A lightning strike hits the ground with a current of 30,000 A.  If the ground has a resistance of 3,000 Ω, determine how much electrical energy is exerted by the lightning strike in 0.02 s.
in Grade 12 Physical Sciences by Diamond (39.8k points) | 20 views

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Best answer
E= P*t


=((30,000)^2* (3.000))* (0.02)

= 2700* 0.02

= 54 J
by Wooden (2.3k points)
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