Answers

The Brainliest Answer!
2015-07-30T22:19:27+05:30

This Is a Certified Answer

×
Certified answers contain reliable, trustworthy information vouched for by a hand-picked team of experts. Brainly has millions of high quality answers, all of them carefully moderated by our most trusted community members, but certified answers are the finest of the finest.
Induced emf ξ = - \frac{d \Phi}{dt},\ where\ \Phi=total\ magnetic\ Flux\ through\ the\ coil.

ξ = - d (8 t² + 3 t + 5) / d t
   = - 16 t + 3
   = -16 * 4 + 3 = - 61 Volts.

2 5 2
click on thanks button above please
so there is no role of the word fourth? i mean is there any difference between flux in FOUR seconds and flux at FOURTH second?
magnetic flux is an instantaneous quantity.. so you find it at t = 1, 2, 3, 3.4 sec.. like that... for finding emf induced, perhaps there is no meaningful use for adding flux over a duration of time..
instantaneous emf generated depends of rate of change of flux at a point of time only..
thanxx..