Practicing Success
Case: Read the passage and answer the following questions Conductors contain mobile charge carriers. In metallic conductors, these charge carriers are electrons. In a metal, the outer (valence) electrons part away from their atoms and are free to move. These electrons are free within the metal but not free to leave the metal. The free electrons form a kind of ‘gas’; they collide with each other and with the ions and move randomly in different directions. In an external electric field, they drift against the direction of the field. The positive ions are made up of the nuclei and the bound electrons remain held in their fixed positions. |
A neutral conductor has : |
Excess positive charge Excess negative charge Equal amount of positive and negative charge None of the above |
Equal amount of positive and negative charge |
The conductor is neutral because it has equal positive and negative charges in it. |