LECTRICAL INSTALLATION WAEC 2019

       

   
              √~~~~~~ESSAY~~~~~~√
[1ai)
An electrical conductor is a substance in which electrical charge carriers, usually electrons, move easily from atom to atom with the application of voltage

(2bi)
A fuse is a small, thin conductor designed to melt and separate into two pieces for the purpose of breaking a circuit in the event of excessive current.

( 2bii)
Current flowing through a conductor’s nonzero resistance leads to power dissipation. Power is dissipated in the form of heat. Heat raises the temperature of the conductor. If the combination of current amplitude and duration is sufficient to raise the temperature above the fuse’s melting point, the fuse becomes an open circuit and current flow ceases.



1ai)
An electrical conductor is a substance in which electrical charge carriers, usually electrons, move easily from atom to atom with the application of voltage....


.1bi)
Fibre glass
Mineral wool
cellulose
Polyurethane Foam
Polystyrene...



1bii)
silver.
copper.
gold .
aluminum .
iron .





2a)
Always use insulated tools while working.
Never use equipment with frayed cords, damaged insulation or broken plugs.
Always take care while soldering your circuit boards. Wear goggles and keep yourself away from the fumes. Keep the solder iron in its stand when not in use; it can get extremely hot and can easily cause burns.....



2bi)
A fuse is a small, thin conductor designed to melt and separate into two pieces for the purpose of breaking a circuit in the event of excessive current.



1ai)
An electrical conductor is a substance in which electrical charge carriers, usually electrons, move easily from atom to atom with the application of voltage....


.1bi)
Fibre glass
Mineral wool
cellulose
Polyurethane Foam
Polystyrene...



1bii)
silver.
copper.
gold .
aluminum .
iron .





2a)
Always use insulated tools while working.
Never use equipment with frayed cords, damaged insulation or broken plugs.
Always take care while soldering your circuit boards. Wear goggles and keep yourself away from the fumes. Keep the solder iron in its stand when not in use; it can get extremely hot and can easily cause burns.....



2bi)
A fuse is a small, thin conductor designed to melt and separate into two pieces for the purpose of breaking a circuit in the event of excessive current......



2bii)
Current flowing through a conductor’s nonzero resistance leads to power dissipation. Power is dissipated in the form of heat. Heat raises the temperature of the conductor. If the combination of current amplitude and duration is sufficient to raise the temperature above the fuse’s melting point, the fuse becomes an open circuit and current flow ceases.....
 
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