1. Match List I with List II and select the correct answer using the code given below the Lists :List I List II (Physical quantity) (Unit)
A. Distance 1. Mole
B. Amount of material 2. Coulomb
C. Amount of electrical 3. Light year change
D. energy 4. Watt hourCode : A B C D

2. A hollow metal ball carrying an electric charge produces no electric field at points

3. The electric field inside a perfectly conducting hollow object is

4. An electric lamp of 100 watt is used for 10 hours per day. The 'units' of energy consumed in one day by the lamp is

5. Magnetism of a bar magnet can be destroyed if it is
I. kept in the magnetic meridian.
II. placed in a direction opposite to that of the Earth’s horizontal intensity. III. heated to a temperature known as Curie temperature. Select the correct answer using the code given below

6. Which one of the statements given below is not correct?

7. Consider the following: Heat produced in a conductor carrying current is independent of
1. Current passing through it.
2. Thermal conductivity. 3. Specific resistance. Which of the statement given above is/are correct?

8. Two conducting wires A and B are made of same material. If the length of B is twice that of A and the radius of circular cross-section of A is twice that of B, then their resistances R_A and R_B are in the ratio

9. Non-conductors, whose polarization is caused by an electric field, are known as

10. Three resistance coils of 1 W, 2 W and 3 W are connected in series. If the combination is connected to a battery of 9 V, what is the potential drop across the resistance coil of 3 W ?

11. Which one of the following is the correct statement ? A fairly uniform magnetic field is produced

12. Two similarly charged bodies are kept 5 cm apart in air. If the second body is shifted away from the first by another 5 cm, their force of repulsion will be

13. An electric heater is rated 1500 watt. If electric power costs ` 2 per kilo-watt-hour, then the cost of power of 10 hours running of the heater is

14. This question consist of two statements, one labelled as the Assertion (A) and the other as ‘Reason (R), You are to examine these two statements carefully and select the answers to these items using the codes given below: Assertion(A) : If the filament of a light bulb is not uniform horizontal its life is shortened.Reason(R) : Resistance of glowing light bulb is less than that of bulb at room temperature.

15. Net charge in a current-carrying conductor is

16. Three resistors with magnitudes 2, 4 and 8 ohm are connected in parallel. The equivalent resistance of the system would be

17.
B is a 1.5 V, 0.30A, 5.0 W torch bulb working in the circuit as shown above. What is the combined resistance of R and B between the points X and Y ?

18. The effective resistance of three equal resistances, each of resistance r, connected in parallel, is

19. If a charged particle (+q) is projected with certain velocity parallel to the magnetic field, then it will

20. A current of 0.5A is drawn by a filament of an electric bulb for 20 minutes. The amount of electric charge that flows through the circuit is

21. When an electrical safety fuse is rated (marked) as 16 A, it means it

22. When you walk on a woolen carpet and bring your finger near the metallic handle of a door an electric shock is produced. This is because

23.
The motion of an electron in presence of a magnetic field is depicted in the figure. Force acting on the electron will be directed

24. An electric iron of resistance 20 W takes a current of 5 A. The heat developed in joules in 30 s is

25. Which one of the following is the resistance that must be placed parallel with 12W resistance to obtain a combined resistance of 4W ?