Question

charge going through a cross-section is given as a function of time q=2t^2+3 find current at t=2sec?

Answer 1

Answer:

8A

Explanation:

$i = \frac{dq}{dt} = \frac{d}{dt} (2 {t}^{2} + 3) = 4t \\ i = 4 \times 2 = 8$