Basic of Electrical Engineering Mcqs

This set of Electrical engineering Multiple Choice Questions & Answers (MCQs) focuses on “Basics of Electrical engineering”. These questions are chosen from a collection of most authoritative and best reference books on Electrical engineering. Our aim is to prepare an individual for competitive exams like NTS, GAT, ECAT, University and College entrance exams, Jobs and interviews. One should practice our MCQS to assimilate Electrical engineering comprehensively.

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19.
Which of the following has no units?

Permeability

Moment of a magnet

Magnetic susceptibility

Ermittivity

22.
The substances which have a large number of free electrons and offer a low resistance are called____?

Insulators

Inductors

Semi-conductors

Conductors

25.
The property of a conductor due to which it passes current is called___________?

Resistance

Reluctance

Conductance

Inductance

27.
The resistance of a conductor varies inversely as___________?

Length

Area of cross-section

Temperature

Resistivity

28.
With rise in temperature the resistance of pure metals______________?

Increases

Decreases

First increases and then decreases

Remains constant

29.
With rise in temperature the resistance of semi-conductors_________________?

Decreases

Increases

First increases and then decreases

Remains constant

30.
The resistance of a copper wire 200 m long is 21 Q. If its thickness (diameter) is 0.44 mm, its specific resistance is around_______________?

1.2 x 10~8 Q-m

1.4 x 10~8 Q-m

1.6 x 10″”8 Q-m

1.8 x 10″8 Q-m

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