Introductory Electronics – Online MCQs – Physics 10th

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

2. Modern colour TVs have __________ electron guns.

3. The Boolean expression of a NOT gate is:

4. Digital electronics uses the digits:

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

6. Electronic devices are:

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

8. To study the properties of an electron beam, we use:

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

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

11. CRO means

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

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

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

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

16. The Boolean expression of an AND gate is:

17. This logical, gate is used in a simple automobile seat belt alarm system.

18. A cathode ray oscilloscope consists of:

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

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