Introductory Electronics – Online MCQs – Physics 10th

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

2. Modern colour TVs have __________ electron guns.

3. When anyone of inputs is at 1, the value of the output of OR gate will be:

4. The Boolean expression of a NOT gate is:

5. The electric field can be detected:

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

7. If the input of a NOT gate is “1” then its output is:

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

9. There are ______ basic logic gates.

10. Electronic devices are:

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

12. The process of emission of electrons from the hot metal surface is called:

13. Electronics comprises the:

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

15. In an electric field, the energy and speed of the electron beam:

16. Which of the following is not an electronic device?

17. If the direction of magnetic field is reversed, the direction of force is:

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

19. For OR gate, A + B + C = 0 if:

20. In AND gate, if any input is ‘0’ then the output will be: