Introductory Electronics – Online MCQs – Physics 10th

1. In a magnetic field, the beam of electrons follows a:

2. Phenomenon of emission of electrons hot metal surfaces is called:

3. For AND gate, A.B.C = 1 if:

4. Electronics comprises the:

5. Electronic devices are:

6. Presentation of inputs and outputs in binary form as a table is called:

7. In a magnetic field, the energy and speed of the electron beam:

8. A simplified intrusion detection system using a/an:

9. For OR gate, if A = 0 and B = 1 then A + B = __________

10. Modern colour TVs have __________ electron guns.

11. These are the basic unit of digital logic circuits.

12. The beam of fast-moving electrons is called:

13. There are ______ basic logic gates.

14. The Boolean expression of an AND gate is:

15. In CRO, a grid is connected to which potential:

16. The cathode ray carry:

17. 44. If AND operation is followed by a NOT operation, it will be ________ operation.

18. The electric field can be detected:

19. The Boolean expression of a NAND gate is:

20. For a NOR gate, the output will be 0 if: