Please answer the following questions and also mention the concepts involved and why the incorrect options are wrong. Share with your friends Share 0 Sagar Kumar answered this Dear Student,Q =7t2+4t +1 current fro small time dtdQdt=7×2t +4Or, dQdt=14t +4at t =6 secCurrent I =14×6 +4Therefore the value of current, I =88 Aoption 4 is correctRegards 1 View Full Answer