Introductory Electronics – Online MCQs – Physics 10th

1. In a electron gun, to accelerate the electrons, the anode is connected to:

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

3. The electric field can be detected:

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

5. There are ______ basic logic gates.

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

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

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

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

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

11. ADC circuit converts:

12. Electronic devices are:

13. This logical gate is known as the invertor.

14. The Boolean expression of an OR gate is:

15. The cathode rays carry:

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

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

18. Electronics comprises the:

19. The Boolean expression of a NOR gate is:

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