Introductory Electronics – Online MCQs – Physics 10th

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

2. The fluorescent screen of the cathode ray oscilloscope is coated with a fluorescent salt such as:

3. Electronics comprises the:

4. Electronic devices are:

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

6. Modern colour TVs have __________ electron guns.

7. The charge-to-mass ratio (e/m) of electrons is:

8. Digital electronics uses the digits:

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

10. The continuous flow of electrons is made possible by a device called:

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

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

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

14. The Boolean expression of a NOT gate is:

15. A cathode ray oscilloscope consists of:

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

17. The cathode ray carry:

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

19. The Boolean expression of a NAND gate is:

20. This type of signal is in form of a wave: