Basic Electrical Engineering MCQs Part 29

Basic Electrical Engineering MCQs Part 29

The material that has nearly zero temperature coefficient of resistance

The material that has nearly zero temperature coefficient of resistance:

1. Carbon
2. Copper
3. Manganin
4. 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

1. Two atoms
2. Two ions
3. Two molecules
4. Two metal particles

Correct answer: 2. Two ions

Specific resistance of a substance is measured in

Specific resistance of a substance is measured in

1. Ω/m
2. Ω-m
3. Ω/m²
4. m/Ω

Correct answer: 2. Ω-m

The resistance of a closed switch is

The resistance of a closed switch is:

1. Zero
2. Infinity
3. About 50 ohms
4. 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:

1. Very low
2. Low
3. High
4. Any value

Correct answer: 3. High

Related article: 12 Basic Concepts of Electrical Engineering you should Learn Today

Also see: Latest Electrical Engineering Jobs