1. ____an electric instrument which increases or decreases the value of alternating voltage

2. The isotopes which emit radiations are called ____

3. ___an instrument used to measure the current in a circuit

4. ___is a sensitive instrument which detects current in a circuit

5. ____the elements whose Atomic number is greater than 82

6. ___Numbers of protons present in the nucleus

7. The means of transmission of information to far of places is called

8. ___points of maximum amplitude of stationary waves.

9. ___ current which flows always in one direction

10. ____A capacitor whose plates can move

11. ___is an instrument used to measure potential difference between two points

12. Q a process in which the light nuclei diffuse to form a heavier nucleus is called_____

13. Now a days ____is the major source of world communication.

14. The current which does not change its direction of flow is known as ___

15. That branch of electronics which processes the data being provided in form of digits is known _____

16. To draw figures by computer without using drawing material is called the ____

17. ____Bending of waves round an obstacle

18. The elements which have same Atomic number but different Atomic mass number are called ____.

19. ___a device used to store sound and picture

20. ___is a device which stores electric charge