Electronics Mcqs

Our collections of Multiple choice questions and answers focuses on study of Electronics in Physics. These questions are chosen from a collection of most authoritative and best reference books on Physics. Our aim is to prepare an individual for competitive exams like NTS, GAT, ECAT, MDCAT, Teaching jobs Tests and Chemical industry job interviews. One should practice our Mcqs to assimilate knowledge on Electronics in Physics comprehensively.

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32.
The value of resistivity for insulator is of the order of

105 ohm metre

106 ohm metre

107 ohm metre

108 ohm metre

33.
The velocity of an oscillating charge as it moves to and fro along a wire is always

Constant

Zero

Changing

Infinite

34.
The working of transistor as amplifier is similar to

Step up transformer

Step down transformer

Three diodes in common

Triode vacuum tube

37.
To obtain an n-type semiconductor germanium crystal it must be doped with foreign atoms whose valency is

2

3

4

5

38.
Which one of following band is completely filled in case of conductors?

Conduction band

Fermi band

Valence band

Forbidden band

39.
Which one of the following has the greatest energy gap?

Insulator

Conductor

Semi conductor

Any of above

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