They are materials which do not allow the passage of electric current. - Rubber, plastics and ceramics protect us from the dangers of electricity, The outer covering on an electric wire is made up of insulating material - A person can get a fatal electric shock on touching an uncovered electric wire., Electric cell. - Which type of cell is used in toys, TV remotes and radio?, The filament of an electric bulb is made up of tungsten. - What is the filament of an electric bulb made out of?, Electric current flows from the positive terminal to the negative termina - In which direction does conventional electric current flow?, Electric wires are made up of metals which are good conductors of electricity. - Why are electric wires made up of metals?,

Electricity and Circuits 4

由
嵌入

排行榜

視覺風格

選項

切換範本

恢復自動保存: ?