Question

The charge q flowing through a wire varies with time t as q=(0.1+0.2t+0.3t^2)C where t is in second. Find the current through the wire initially and at t=2s

Answer 1

0.8 ampere

Explanation:

Current=Charge /time

Current =dq/dt

= after differentiating will get 0.2+0.3t put t=2 you will get your answer.

Hope this helps you...