P. 3981. A generator of constant voltage but of variable frequency is connected to a series RLC circuit. Gradually changing the frequency the current reaches a maximum, when the voltage across the inductor is U1. If the frequency is further increased the current decreases, but the voltage across the inductor still increases. Later the voltage across the coil reaches its maximum of U2 and then it decreases.
Determine the quotient of in terms of R, L and C.
Deadline expired on 11 May 2007.