StephenDoty
Dec3-08, 10:36 PM
The rectangular loop in the figure has 1.7×10^−2 ohm resistance. What is the induced at this instant? See picture below. Answer is in terms of I, like 5*I.
emf = Bvl
I= emf/R
B= [\mu_0 / 2*pi] *I * ln(.03/.02) since the magnetic field goes through the loop from 2cm to 3cm
then I used this magnitude in emf=B*10*.04 and then used the emf to find the induced current:
I = emf/ (1.7*10^-2)
However, the answer I got using these calculations was incorrect. What did I do wrong?
Thanks.
Stephen
emf = Bvl
I= emf/R
B= [\mu_0 / 2*pi] *I * ln(.03/.02) since the magnetic field goes through the loop from 2cm to 3cm
then I used this magnitude in emf=B*10*.04 and then used the emf to find the induced current:
I = emf/ (1.7*10^-2)
However, the answer I got using these calculations was incorrect. What did I do wrong?
Thanks.
Stephen