AIR COMBUSTION, RUSTING AND FIRE FIGHTING
AIR
This is a homogeneous colorless
mixture of different gases in the atmosphere.
Composition of gases in
air
The gases include: oxygen, nitrogen, carbon dioxide, and noble gas. Air
contains water vapor and dust particles. However, they are not usually
considered part of air.
The table below shows the percentage
composition of gases.
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Monday, November 5, 2018
Current electricity
CURRENT ELECTRICITY
CURRENT ELECTRICITY
Current electricity is the rate at which an electricity source will make
charges to flow or pass a certain point in a conductor or in an electric
circuit.
This means that, when electrical devices are joined in an electric circuit,
electrons flow in a continuous path. It is the flow rate of which is referred
to as current electricity or electric current.
The sources of electricity are of
different nature...