Electricity

Gap-fill exercise

  
Fill in all the gaps, then press "Check" to check your answers. Use the "Hint" button to get a free letter if an answer is giving you trouble. You can also click on the "[?]" button to get a clue. Note that you will lose points if you ask for hints or clues!
1. of a material is its property to oppose the flow of charges and hence the passage of current through it.
2. The SI unit of resistance is .
3. The of a material is defined as the resistance of a conductor of unit length and unit area of cross section.
4. is used in making heating elements.
5. of a material is the property of a material to aid the flow of charges and hence, the passage of current in it.
6. The of electrical resistivity of a material is called its electrical conductivity.
7. If resistors are connected end to end, so that the same current passes through each of them, then they are said to be connected in .
8. The equivalent resistance in a series combination is than the highest of the individual resistances.
9. The equivalent resistance in a parallel combination is than the lowest of the individual resistances.
10. The passage of electric current through a wire, results in the production of .