ICSE Papers

ICSE Guess > ICSE Papers > Important Questions > Class X > 2008 > Physics > Physics By :- Mr. Abdul Samad Khan

Q. 1. Define 'current' .

Q. 2. State and define the SI unit of current.

Q. 3. Define the term 'electric potential'.

Q. 4. What do you mean by potential difference between two points ?

Q. 5. State and define the SI unit of potential difference.

Q. 6. What do you mean by conventional current ?

Q. 7. What do you mean by high potential and low potential ?

Q. 8. What do you mean by electrical resistance ? State and explain the factors on which it depends.

Q. 9. State and define the SI unit of resistance.

Q. 10. State Ohm's law. What are its limitations ?

Q. 11. What is the mathematical form of Ohm's law ?

Q. 12. Differentiate between ohmic and non-ohmic conductors. State few examples of each.

Q. 13. What do you mean by specific resistance (resistivity) of a material ? What is its SI unit ?

Q. 14. State two examples of each of the following:

1. material whose resistance increases with increase in temperature.
2. material whose resistance decreases with increase in temperature.
3. material whose resistance is not affected by change in temperature.

Q. 15. Name the materials used for making connection wire.Give reason for your answer.

Q. 16. Why and which materials are used for making standard resistors ?

Q. 17. What is an electric cell ? What type of energy conversion takes place in it while in use ?

Q. 18. Define the terms e.m.f. and terminal voltage of an electric cell ? State their unit.

Q. 19. Differentiate between e.m.f. and terminal voltage of a cell.

Q. 20. Difine internal resistance of a cell. What is its unit ?

Q. 21. State and explain the factors on which internal resistance of a cell depends.

Q. 22. Write a relation between e.m.f., terminal voltage and internal resistance of a cell.

Q. 23. Differentiate between series and parallel combination of resistances.

Q. 24. What do you mean by power-voltage rating of an appliance ?

Q. 25. Write a relation between watt ,volt and ampere.

Q. 26. What is the commercial unit of electrical energy ? Express it in its SI < value.

Q. 27. Differentiate between kilowatt and kilowatt-hour.