I'm designing a circuit for the diagram below:
Where a mechanical source will move the rod. During the rod's change in position the direct current must be constant (\$ I_c \$) from \$ t_i \$ to \$ t_f \$. When I analyze the change, I observe that the current's path will increase, due to the two horizontal wires increasing in length, and if we considered the resistances of the R + R(rod) + R(wires), \$ R_t \$ will increase(the magnitude will depend on the length). In order to maintain constant current, the applied voltage must change, therefore, a constant current source(CCS) would be an ideal solution.
I also think that the inductance of the circuit) will increase(not sure).
At the start of the process, current is at it's maximum value and the circuit is in a steady state, as the rod begins to move and \$ R \$ & \$ L \$ increase, will a constant current source(CCS) maintain \$ I_c \$ throughout the process? Also, how will the increased inductance affect the CCS/or the circuit( self inductance)?
I'm confused as how current can stay constant using a CCS while \$ R \$ & \$ L \$ increase, aside from the input power increasing for the higher voltage, what else would I need to consider?