Correct Answer - Option 4 : 2βt
The correct answer is option 4) i.e. 2βt
CONCEPT:
-
Electric current: It is defined as the rate of flow of charge in a conducting material.
It is represented mathematically as:
\(I = \frac{q}{t}\)
Where I is current, q is the charge flowing, and t is the time.
EXPLANATION:
As current is the rate of flow of charge,
So \(I = \frac{dq}{dt} = \frac{d(\alpha + \beta t^2)}{dt} = 2\beta t\)