- #1
edlin
- 7
- 0
Hi..I am new here and I am really thankful for any help that I may get
I am stuck in a problem of mutual inductance. It seems fairly simple, yet I cannot get the correct answer.
Two coils are close to each other. The first coil carries a time-varying current given by I(t) = (4.60 A) e-0.0250tsin(377 t). At t = 0.800 s, the voltage measured across the second coil is -3.60 V. What is the mutual inductance of the coils?
So, the equation I have used is: emf2 = -M dI1/dt ...which is the voltage of the second coil equals the mutual inductance times the current with respect to time. I solved for M, but the answer is not right.
My answer was: 80 V*s/A and I got various other answers but they are incorrect.
I really, really would appreciate any help! Thankyou so much!
![Blushing :blushing: :blushing:](https://www.physicsforums.com/styles/physicsforums/xenforo/smilies/oldschool/blushing.gif)
I am stuck in a problem of mutual inductance. It seems fairly simple, yet I cannot get the correct answer.
Two coils are close to each other. The first coil carries a time-varying current given by I(t) = (4.60 A) e-0.0250tsin(377 t). At t = 0.800 s, the voltage measured across the second coil is -3.60 V. What is the mutual inductance of the coils?
So, the equation I have used is: emf2 = -M dI1/dt ...which is the voltage of the second coil equals the mutual inductance times the current with respect to time. I solved for M, but the answer is not right.
My answer was: 80 V*s/A and I got various other answers but they are incorrect.
I really, really would appreciate any help! Thankyou so much!