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The inductance of a closely packed coil of 300 turns is 6.00×10 -3 H . Calculate

ID: 2030258 • Letter: T

Question

The inductance of a closely packed coil of 300 turns is 6.00×10-3 H. Calculate the magnetic flux through the coil when the current is 4.00×10-3 A.

(I know that this question is already posted on Chegg, but I followed the solution to the other questions, and my homework system is telling me that my answer is wrong. For my solution that I have worked out, I got 8*10^-8 Wb. It keeps telling me that this answer is incorrect, and giving me the message "L=N flux/i where N*flux is the flux linkage." Any help in figuring this out would be much appreciated!)

Explanation / Answer

N*phi = flux linkage

N*phi = L*i

phi = L*i/N

L = 6 x 10^-3 H

i = 4 x 10^-3 A

N = 300

phi = 8 x 10^-8 Wb