Charge through a cross-section of a conductor is given by `Q = 5t^(2) - 2t` coulomb . Find the average current through the conductor in the interval `t_(1) = 2s` to `t_(2) = 4s`
(1) 14s (2) 28 A
(3) 56A (4) 7A

Explanation

To find the average current through the conductor in the given time interval, we can follow these steps:

### Step 1: Determine the charge at \( t_2 = 4 \) seconds
We are given the charge \( Q \) as a function of time \( t \):
\[ Q = 5t^2 - 2t \]
Substituting \( t = 4 \):
...