  We adopt a simplified model describing the collapse of a spherical thin-shell
capacitor to give an analytical description how gravitational energy is
converted to both kinetic and electric energies in the gravitational collapse.
It is shown that (i) averaged kinetic and electric energies are the same order,
about an half of gravitational energy of spherical thin-shell capacitor in the
collapse; (ii) caused by radiating and rebuilding electric energy, the
gravitational collapse undergoes a sequence of "on and off" hopping steps in
the microscopic Compton scale. Although the collapse process is still
continuous in terms of macroscopic scales, it is slowed down as the kinetic
energy is reduced and collapsing time is about an order of magnitude larger
than that of the collapse process eliminating electric processes.
