Introductory Electronics – Online MCQs – Physics 10th

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

2. The Boolean expression of a NAND gate is:

3. Thermionic emission is the emission of electrons from a hot:

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

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

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

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

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

9. For the NAND gate, if A = 0, and B = 1 then the output will be:

10. Electronic devices are:

11. Non-continuous quantities are called:

12. The cathode rays carry:

13. For AND gate, if A = 1 and B = 0 then A.B = __________

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

15. when a HIGH level is applied to a logical inverter, its output will be:

16. Digital electronics uses the digits:

17. Modern colour TVs have __________ electron guns.

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

19. Metals are good conductors of electricity because they have free.

20. In an electric field, the beam of electrons follows a: