# Malvino: MCQ in Introduction to Electronic Principles

(Last Updated On: February 7, 2020)

This is the Multiple Choice Questions in Chapter 1: Introduction to Electronic Principles from the book Electronic Principles 7th Edition by Albert Malvino. If you are looking for a reviewer in Electronics Engineering this will definitely help. I can assure you that this will be a great help in reviewing the book in preparation for your Board Exam. Make sure to familiarize each and every questions to increase the chance of passing the ECE Board Exam.

### Topic Outline

• MCQs in Three Kinds of Formulas
• MCQs in Approximation
• MCQs in Voltage Sources
• MCQs in Current Sources
• MCQs in Thevenin’s Theorem
• MCQs in Norton’s Theorem

### Start Practice Exam Test Questions

Choose the letter of the best answer in each questions.

1. An ideal voltage source has

• a) Zero internal resistance
• b) Infinite internal resistance

2. A real voltage source has

• a. Zero internal resistance
• b. Infinite internal resistance
• c. A small internal resistance
• d. A large internal resistance

3. If a load resistance is 1 kΩ, a stiff voltage source has a resistance of

• a. At least 10 ohm
• b. Less than 10 ohm
• c. More than 100 kΩ
• d. Less than 100 kΩ

4. An ideal current source has

• a. Zero internal resistance
• b. Infinite internal resistance

5. A real current source has

• a. Zero internal resistance
• b. Infinite internal resistance
• c. A small internal resistance
• d. A large internal resistance

6. If a load resistance is 1 kΩ, a stiff current source has a resistance of

• a. At least 10 ohm
• b. Less than 10 ohm
• c. More than 100 kΩ
• d. Less than 100 kΩ

7. The Thevenin voltage is the same as the

• c. Ideal source voltage
• d. Norton voltage

8. The Thevenin resistance is equal in value to the

• b. Half the load resistance
• c. Internal resistance of a Norton circuit

9. To get the Thevenin voltage, you have to

• a. Short the load resistor
• b. Open the load resistor
• c. Short the voltage source
• d. Open the voltage source

10. To get the Norton current, you have to

• a. Short the load resistor
• b. Open the load resistor
• c. Short the voltage source
• d. Open the current source

11. The Norton current is sometimes called the

• c. Thevenin current
• d. Thevenin voltage

12. A solder bridge

• a. may produce a short
• b. may cause an open
• c. is useful in some circuits
• d. always has high resistance

13. A cold-solder joint

• a. shows good soldering technique
• b. usually produces an open
• c. is sometimes useful
• d. always has low resistance

14. An open resistor has

• a. Infinite current through it
• b. Zero voltage across it
• c. Infinite voltage across it
• d. Zero current through it

15. A shorted resistor has

• a. Infinite current through it
• b. Zero voltage across it
• c. Infinite voltage across it
• d. Zero current through it

16. An ideal voltage source and an internal resistance is an example of the

• a. Ideal approximation
• b. Second approximation
• c. Higher approximation
• d. Exact model

17. Treating a connecting wire as a conductor with zero resistance is an example of the

• a. Ideal approximation
• b. Second approximation
• c. Higher approximation
• d. Exact model

18. The voltage out of an ideal voltage source

• a. Is zero
• b. Is constant
• c. Depends on the value of load resistance
• d. Depends on the internal resistance

19. The current out of an ideal current source

• a. Is zero
• b. Is constant
• c. Depends on the value of load resistance
• d. Depends on the internal resistance

20. Thevenin’s theorem replaces a complicated circuit facing a load by an

• a. Ideal voltage source and parallel resistor
• b. Ideal current source and parallel resistor
• c. Ideal voltage source and series resistor
• d. Ideal current source and series resistor

21. Norton’s theorem replaces a complicated circuit facing a load by an

• a. Ideal voltage source and parallel resistor
• b. Ideal current source and parallel resistor
• c. Ideal voltage source and series resistor
• d. Ideal current source and series resistor

22. One way to short a device is

• a. With a cold-solder joint
• b. With a solder bridge
• c. By disconnecting it
• d. By opening it

23. Derivations are

• a. Discoveries
• b. Inventions
• c. Produced by mathematics
• d. Always called theorems

24. Laws are proved by

• a. Definition
• b. Experiment
• c. Mathematics
• d. Formulas

25. Definitions are

• b. Invented