Question

By Faraday's Law, if a conducting wire of length l meters moves at velocity v m/s perpendicular to a magnetic field of strength B (in teslas), a voltage of size V=−Blv is induced in the wire. Assume that B=7 and l=0.5.

Find the rate of change dV/dv.

(Use decimal notation. Give your answer to three decimal places.)


dV/dv = ?

Find the rate of change of V with respect to time t if v=9t+9.

(Use decimal notation. Give your answer to three decimal places.)

dV/dt =

P.S: I got dV/dv= -3.5 that is right but for dV/dt= i got -22.5 but it keeps on saying it's wrong

Answer 1

http://www.math4u.us/files/rog.html

Answer 2

i have no idea

Answer 3

ahhhhhhhhh someoneeeee

Answer 4

dV/dt =-Bl=-7x0.5
???