Early stage of the FFMD simulation with zero power and current (P = 0, I = 0) as the initial condition around the rapidly spinning black hole (a_* = 0.95). In this case, the electric field in the normal frame is initially zero (﹩{E}_{\tilde{\theta }}=0﹩). The dashed lines show quantities at t = 0. The dotted lines show the results at t = 0.25 M. The solid lines show the results at t = 0.5 M. The horizontal and vertical dashed–dotted lines are similar to Figure 2. P and I start to rise over the values of the steady-state solution.