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Gnarlywhale
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Homework Statement
A circular conducting coil with N=100 turns and radius "r" is oriented in the xy plane. The leads of the coil are connected to a circuit with resistance "R." A time varying external magnetic flux density "B" is applied along the z-axis.
What is the total magnetic flux through the coil as a function of time?
Homework Equations
Φ = BA
The Attempt at a Solution
Φt = Φb - Φi
Φt = BA - Φi
(where Φt is the total magnetic flux through the coil, Φb is the externally applied magnetic flux and Φi is flux induced by lenz's law).
I am aware that there is an induced magnetic flux but cannot figure out how to determine it from the external magnetic flux. Is there just some equation I can't seem to locate?