Electronic Principles
Doubling the operating frequency of a purely inductive circuit:

cuts the current through the inductors one-half
doubles the amount of current through the inductors
increases the current, but by an amount that can be determined only by doing a complete analysis of the circuit
None of these
has no effect on the current through the inductors

ANSWER DOWNLOAD EXAMIANS APP

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

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

ANSWER DOWNLOAD EXAMIANS APP