Basic Electrical Mcqs and Quiz with explanation. These objective type Basic Electrical Engineering questions are very important for Job test, semester exams and interviews. Basic Electrical Engineering Mcqs. Basic Concepts (Electrical Fundamentals) MCQs With Explanatory Answers
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- Subject
- Basic Electrical Mcqselectrical-engineering-mcqs › basic-electrical-mcqs
- Published
- 28 Jun 2018
- Last updated
- 28 May 2026
Explanation
When a wire is stretched to three times its length while keeping the volume constant, its cross-sectional area decreases by a factor of three squared (9). Since resistance is proportional to length and inversely proportional to area, the new resistance becomes 3 (length factor) multiplied by 9 (area factor inverted), resulting in nine times the original resistance.
More Basic Electrical Mcqs
Practice related questions from the same subject.
- 1.Which of the following is equivalent to one newton meter?
- 2.What is the equivalent of 1 angstrom in meters?
- 3.Conductance is measured in mhos. Which of the following pairs shows a quantity and its correct unit in a similar manner?
- 4.Which of the following materials exhibits a negative temperature coefficient?
- 5.If a voltage of 1 volt causes a current of 1 microampere to pass through a circuit, what is the conductance of that circuit?
- 6.Nichrome wire is primarily composed of which two metals?
- 7.Given that I represents current, R denotes resistance, and t stands for time, according to Joule's law, the heat generated is directly proportional to which of the following expressions?
- 8.What type of temperature coefficient does a thermistor exhibit?
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