the electric current and cannot be considered
any more as an ideal electric conductor but a
resistor. In figure 7 it was seen that a difference
potential of 10 Volts appeared between the
terminals of a resistor on account of the of
electric current flowed throughout it, in figure 8a,
a potential of 10 volts is applied to the upper of
the conductor and no current passes because
the lower end of the conductor is not connected,
so at this end also there is a potential of 10
volts, but in figure 8b the lower end of the same
Fig 9
electric conductor is connected to a 0V potential
at the time of the connection, because of the Ground system
potential difference the electric current goes
Ground system is composed of one, two or
from the upper terminal end toward the lower more metal rods driven into the earth, they are
terminal end, a time after at both terminals the jointed at one point with a low resistance
potential is 0V, the same happens when an end conductor which is connected at the other end at
of a conductor is connected to the positive side the medical equipment metal surface, if there
of a 1.5 V battery, and the other end is would be an isolation failure it could provoke a
connected to the negative of the battery, on dangerous potential on the metal surface, of
account of the amount of current flowing from course this potential is higher than the ground
the positive to the negative, the electric potential (0 volt) so the low resistance conductor
conductor get heat and the voltage between acts as a drainage for the electric current from
both side of the battery disappear, the battery is the high potential on the metal surface to the
discharged.
ground system (0 volt) and the potential
disappears from the metal surface as it
happened when it connected a conductor
between a battery, its voltage disappears, it has
been discharged.
Macro shock
Macro shock can be defined as an electric
current of 1 mA, 200 mA and even greater flows
Fig 8