Punjab 10th Class Physics Chapter 7 Basic Electronics Mcqs Test Online

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Question 1 of 20

Physics

1. If X = A.B, then X is 1 when:

1.A or B is 0

2.A and B are 1

3.A is 0 and B is 1

4.A is 1 and B is 0

Question 1 of 20

Question 2 of 20

2. AND gate can be formed by using two:

1.OR gates

2.NOT gates

3.NOR gates

4.NAND gates

Question 2 of 20

Question 3 of 20

3. A and B are the two input of a NAND gate. Its output would be 1 when:

1.A = 0, B = 0

2.A = 0, B = 0

3.A = 1, B = 1

4.A = 1, B = 0

Question 3 of 20

Question 4 of 20

4. The output of an OR gate would be 0 when:

1.One of its two inputs is zero

2.Any one of its two inputs is 1

3.Both of its inputs are 1

4.Both of its input are 0

Question 4 of 20

Question 5 of 20

5. Which statement is not true about semi-conductor:

1.The number of electron can be added according to our requirement

2.They are not of such practical use is this state.

3.Hexavalent impurity is usually added in them

4.They are not good conductors in their purest form

Question 5 of 20

Question 6 of 20

6. The process by which electrons are emitted by a hot metal surface is known as:

1.Conduction

2.Boiling

3.Thermionic emission

4.Evaporation

Question 6 of 20

Question 7 of 20

7. The two inputs of a NAND gate are A and B. Its output would be 0 when:

1.A = 1, B = 1

2.A = 0, B = 0

3.A = 1, B = 0

4.A = 0, B = 0

Question 7 of 20

Question 8 of 20

8. The logical operation performed by this gate is:

1.NAND

2.OR

3.NOR

4.AND

Question 8 of 20

Question 9 of 20

9. Which statement is not true:

1.Temperature is an analogue quantity

2.Microphone converts sound into electric potential

3.Amplifier is not an analogue circuit

4.Amplifier is an analogue circuit

Question 9 of 20

Question 10 of 20

10. Which is the semi conductor:

1.Gold

2.Germanium

3.Silver

4.Iron

Question 10 of 20

Question 11 of 20

11. The output of a NAND gate is 0 when:

1.Both of its inputs are 0

2.Any of its inputs is 1

3.Any of its inputs is 0

4.Both of its inputs are 1

Question 11 of 20

Question 12 of 20

12. Those quantities whose values very continuously or remains constant are called:

1.Scalar quantities

2.Analogue quantities

3.Vector quantities

4.Light quantities

Question 12 of 20

Question 13 of 20

13. The output of a two-input NOR gate is 1 when:

1.Both A and B are 0

2.A is 0 and B is 1

3.A is 1 and B is 0

4.Both A and B are 1

Question 13 of 20

Question 14 of 20

14. Which is not a true statement?

1.Germanium crystal acts as insulator in its purest form

2.Germanium forms covalent bond by sharing four electrons

3.Germanium is the member of 6th group of periodic table

4.Germanium has four electrons is its valence shell

Question 14 of 20

Question 15 of 20

15. In a n-type crystal, the majority carriers are:

1.Positron

2.Free electors

3.Holes

4.Protons

Question 15 of 20

Question 16 of 20

16. The output of an AND gate is only 1 when:

1.Anyone of the two

2.Both of its inputs are 1

3.Any one of the two inputs is 0

4.Both of its inputs are 0

Question 16 of 20

Question 17 of 20

17. Which of the following is an insulator?

1.Aluminium

2.Silicon

3.Plastic

4.Copper

Question 17 of 20

Question 18 of 20

18. The branch of applied physics in which we control the flow of electrons using diodes, transistors and other semi conductor devices in order to meet our various requirements is called:

1.Mechanics

2.Metaphysics

3.Electricity

4.Electronics

Question 18 of 20

Question 19 of 20

19. Atomic number of silver is 47, the number of its valence electrons would be _________.

1.2

2.8

3.18

4.32

Question 19 of 20

Question 20 of 20

20. The particles emitted from a hot cathode surface are:

1.Protons

2.Electrons

3.Positive ions

4.Negative ions

Question 20 of 20

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