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1. electrical conductors are made up of metals such as copper aluminium accept this metal are used to make wire most wires are made out of copper . 2. three components of electric circuit are conductive path , source of voltage , a resistor.
3.an ammeter is a measuring device used to measure the electric current in a circuit a voltmeter is connected in parallel with the device to measure its voltage while and ammeter is connected in series with the device to measure its current. 4. the two terminals of the electric cell array never joined together without conduct connecting them throw a switch and a device like a bird because if we do so the chemicals in the electric cell get used up very fast and the cell stops working 5.electric current is the rate of flow of electrons in a conductor si unit of electric current is the ampere 6.due to the heating effect of electric current the bulb glows when the electric current passes through it the filament of the bulb gets heated to a high temperature and it starts glowing7.electrical cell is a source of electricity and electric cell has two terminal 1 is odd positive while other is called negative and electric bulb has a filament that is connected to terminals and electric bulb glows when electric current passes through it 8. rubberrubber and plastic used to cover wires as they are insulator that is they don't conduct electricity so that when we touch the wires we do not get shocked 9. using distilled or deionized water is a recommended because it is free from additional results you would find in water such as regular tap water at dink chemicals and minerals can significantly decrease the life of battery is never the additional acid for electrolyte solution this can as a diminished the battery life
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