- #1

mayo2kett

- 23

- 0

ok so this is what i have:

r= 13cm= .13m

change in t= .45s

B= .60T

restitance per unit length= 3.3 x 10^-2

N= 1

then i tried:

magnetic flux= BAcos= (.60T)(530.9m^2)= 318.6

emf= -N(change in magnetic flux/ change in time)= -1(318.6/.45s)= -708

here is where i get really confused:

R= restitance per unit length (L/A)

does this mean i should do:

R= 3.3 x 10-2 ohm/m (2 pi .13)/(.13^2 pi)?

or is it just R= 3.3 x 10-2 ohm/m (.13m)? because the units work out this way...

once i figure that out i would do:

I=emf/R ---->

P=I(emf) ------->

E=Pt and that would give me energy