Electronic Principles
Molecule is

A atom that has an excessive number of electrons in its outer orbit
A atom that has a shortage of electrons in its outer orbit
The smallest particle of a substance that retains the properties of that substance
None of these
A atom that flows whenever there is an imbalance of electrical charges between two points

ANSWER DOWNLOAD EXAMIANS APP

Electronic Principles
Which one of. the following phrases most accurately describes the nature of a pulsating dc voltage?

The voltage causes current to flow in two directions at the same time
The voltage reverses polarity periodically
The voltage remains at one polarity and at a steady level
The voltage remains at one polarity but changes value periodically
None of these

ANSWER DOWNLOAD EXAMIANS APP

Electronic Principles
What is the difference between a conductor and an insulator?

An insulator has an excessive number of free electrons, while a conductor has a few free electrons or none at all
None of these
An insulator allows current to flow much easier than a conductor does
The difference between conductors and insulators depends on how they are used
A conductor allows current to flow much easier than an insulator does

ANSWER DOWNLOAD EXAMIANS APP