Basic Electrical Engineering MCQs Part 29
Basic Electrical Engineering MCQs Part 29
Contents
The material that has nearly zero temperature coefficient of resistance
The material that has nearly zero temperature coefficient of resistance:
- Carbon
- Copper
- Manganin
- Porcelain
Correct answer: 3. Manganin
Explanation: Manganin has nearly zero temperature coefficient of resistance
Related MCQ: Temperature coefficient of resistance of given conductor is defined as
A field of force can exist only between
A field of force can exist only between
- Two atoms
- Two ions
- Two molecules
- Two metal particles
Correct answer: 2. Two ions
Specific resistance of a substance is measured in
Specific resistance of a substance is measured in
- Ω/m
- Ω-m
- Ω/m2
- m/Ω
Correct answer: 2. Ω-m
The resistance of a closed switch is
The resistance of a closed switch is:
- Zero
- Infinity
- About 50 ohms
- About 500 ohms
Correct answer: 1. Zero
Explanation: A closed switch has zero resistance.
Also read: How to Insulation Resistance Test a Cable
The wattage of test lamp for testing appliances should be
The wattage of test lamp for testing appliances should be:
- Very low
- Low
- High
- Any value
Correct answer: 3. High
Related article: 12 Basic Concepts of Electrical Engineering you should Learn Today
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