Electrical resistivity of noble gas pulsed discharges

The electrical resistivity of pulsed discharges in flash-tubes using noble gases is treated in a simple manner. Relations between resistivity and electric field
E
and current density
j
are given. It is shown that electrical resistivity in pulsed discharges is an inverse function of
j
or
E
, depending also on an exponent
n
which does not remain constant during the discharge.