# Basic Electrical Engineering MCQs Part 25

Basic Electrical Engineering MCQs Part 25

## The resistance of a straight conductor depends on all of below mentioned with the exception of

The resistance of a straight conductor depends on all of below mentioned with the exception of:

1. Temperature
2. Shape of cross-section
3. Material
4. Cross-sectional area

Correct answer: 2. Shape of cross-section

## A substance having number of valence electrons more than 4 is usually

A substance having number of valence electrons more than 4 is usually:

1. An insulator
2. A semiconductor
3. A conductor
4. None of the above

## The thermal speed of electrons is of the order of

The thermal speed of electrons is of the order of:

1. 10^-3 m/s
2. 10^6 m/s
3. 10^8  m/s
4. None of these

## No current flows between two charged bodies when they have same

No current flows between two charged bodies when they have same

1. Charge
2. Capacity
3. Potential
4. None of the above

## Resistance of Yellow Violet Orange Silver 4 Band Resistor

A resistor having color coding:

Yellow Violet Orange Silver will have resistance:

1. 4.7 kΩ ± 10%
2. 47 kΩ ± 10%
3. 2.7 kΩ ± 10%
4. 27 kΩ ± 10%

Correct answer: 2. 47 kΩ ± 10%

Explanation:

Yellow, Violet = 47

Orange = 10^3

Silver = ±10% tolerance