Question

give me answers.. all question

Answer 1

Answers .........
2)a
3) b

Answer 2

Hello friend...!!

1) to calculate electrostatic potential energy the formula used is,
V = Kq1q2/r^2.
V = 9x10^9 x 10^-6 x 10^-6 / 1
V = 9 x 10^-3 j.
Option 'c' us the correct answer.


2) 1 kWh = 3.6 x 10^6 J.
Option 'a'is the correct answer.

3) j = sigma (E).
option 'b' is the correct answer.

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Hope it is useful..!!