Electrical Engineering MCQs on Basic Concepts of EE – Basic Electrical Engineering MCQs Part 37

Contents

- 1 The resistance of a conductor varies inversely with
- 2 Two bulbs of 500 W and 200 W rated at 250 V will have a resistance ratio as
- 3 A current of 16 amperes divides between two branches in parallel of resistances 8 ohms and 12 ohms respectively. The current in each branch is
- 4 An electric filament bulb can be worked from
- 5 The substances that have a large number of free electrons and offer a low resistance are known as

## The resistance of a conductor varies inversely with

The resistance of a conductor varies inversely with

- Area of cross-section
- Length
- Resistivity
- Temperature

Correct answer: 1. Area of cross-section

## Two bulbs of 500 W and 200 W rated at 250 V will have a resistance ratio as

Two bulbs of 500 W and 200 W rated at 250 V will have the resistance ratio as

- 2:5
- 25:4
- 4:25
- 5:2

Correct answer: 1. 2:5

## A current of 16 amperes divides between two branches in parallel of resistances 8 ohms and 12 ohms respectively. The current in each branch is

A current of 16 amperes divides between two branches in parallel of resistances 8 ohms and 12 ohms respectively. The current in each branch is

- 4.6 A, 6.9 A
- 4.6 A, 9.6 A
- 6.4 A, 6.9 A
- 6.4 A, 9.6 A

Correct answer: 4. 6.4 A, 9.6 A

## An electric filament bulb can be worked from

An electric filament bulb can be worked from

- AC supply only
- Battery supply only
- DC supply only
- All of above

Correct answer: 4. All of above

## The substances that have a large number of free electrons and offer a low resistance are known as

The substances that have a large number of free electrons and offer a low resistance are known as

- Conductors
- Inductors
- Insulators
- Semiconductors

Correct answer: 1. Conductors