Question

訪客

請問這一題要怎麼算?

單選題

( ”)1. Alightning flash may transfer up to 30C of charge through a potential difference of
108y. How much energy does this involve?
(A) 1.5 x 10?/         (B) 3x 10? 7         (C) 3x 10397           (D) 9x 1039 7

Answer 1

✨ ベストアンサー ✨

Guest

E=QV
=30*10^8
=3*10^9(J)
So is (B)

訪客

謝謝。