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Lightning bolt charge physics problem

  • #1

Homework Statement


A lightning bolt carrying 30,000 A lasts for 50 microseconds. If the lightning strikes an airplane flying at 20,000 ft, what is the charge deposited on the plane?


Homework Equations


q(t) = [tex]\int[/tex] i(x)dx


The Attempt at a Solution


So, using the equation above I found the charge of the lightning bolt to be 30,000A * 50 x 10^-6

q(t) = 1.5 c

Then to find charge of the airplane
q(t) = [tex]\int[/tex] 20,000dx from 0 to 50 microseconds

q(t) = 20,000x
q(t) = 20,000 (50 x 10^-6) = 1

I'm a bit rusty on my physics as you can see. Maybe someone can direct me to a more precise approach. Thank you
 

Answers and Replies

  • #2
1,137
0


x is not time i guess
 
  • #3


i could find the charge of the lightning bolt by q = it given i = 30,000 A and t = 50 x 10^-6 s

q = 30,000A) * (50 x 10^-6 s) = 1.5 C

but how can I find the charge deposited onto the plane at 20,000 feet?
 

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