Electronic Principles
Which one of the following kinds of materials has the highest permeability?

A diamagnetic material
None of these
A ferromagnetic material
A paramagnetic material
All of these

ANSWER DOWNLOAD EXAMIANS APP

Electronic Principles
The period of a waveform is:

equal to 0.707 times the peak amplitude
the time required for the voltage to rise from 10% to 90% of the peak amplitude
None of these
the time required to complete one full cycle
the number of cycles completed in one second

ANSWER DOWNLOAD EXAMIANS APP

Electronic Principles
Which one of the following phrasers best describes flux density?

The rate of change of the number of lines of magnetic force
The concentration of lines of magnetic force
The force that maintains lines of force
None of these
The opposition to a build-up of magnetic fields

ANSWER DOWNLOAD EXAMIANS APP