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

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

3. ___Numbers of protons present in the nucleus

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

5. ___ current which flows always in one direction

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

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

8. ____the elements whose Atomic number is greater than 82

9. ___a device used to store sound and picture

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

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

12. ___points of maximum amplitude of stationary waves.

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

14. ____Bending of waves round an obstacle

15. ___is a device which stores electric charge

16. ____A capacitor whose plates can move

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

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

19. The isotopes which emit radiations are called ____

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