The reasons of some dangers of the electricity

Electricity dangers

The human is a good conductor of the electricity as 70 % of the body contains the water , the human is more exposed to the electric shock when it is wet and it may lead to the death .

The reasons of the electric shock

Electric shock

The electric shock may cause the death

The electric shock happens when the body is a part of a closed electric circuit , where the electric current flows from a part of the body and comes out from another part.

The electric shock happens when a part of your body touches a wire that has an electric current and another part of your body touches the ground and it happens when you touch two wires connected with the electricity .

The electric shock happens when a part of your body touches a wire that has an electric current, and another part of your body touches a material conducting the electricity and connected to the ground .

The reasons of the electric burns

The electric burns happens when a part of your body touches a source of electric current directly , so in this case , the electric burns happens as a result of the electric shock .

When a part of your body touches an electric machine that generates heat ( as the heater , the iron , the electric heater ) , When a part of your body touches the fire or the spark resulting from the electric fire .

The reasons of the electric fires

The electric fires happens when placing an electric machine that generates heat ( as the iron , the electric heater , the heater ) close to some flammable materials ( as the furniture , the curtains , the carpets , the clothes ) .

When plugging more than one machine to one socket that causes the electric overload , so the wires heat up causing the fires , The electric fires happens when you disconnect the electric current from the electric machine that generates the heat after use as this causes an increase in the temperature of the machine , so , The  fires occur .

Electrical current , Potential difference , Electric resistance and Ohm’s law 

Resistances connection ( series & parallel ) , Electric energy and Electric power

Ohm’s Law for the closed circuit , Relation between emf ( VB ) of an electric cell & voltage across its poles

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