Electronic Principles
Doubling the operating frequency of an inductive circuit:

doubles the amount of inductive reactance
cuts the inductive reactance in half
multiplies the inductive reactance by 6.28
None of these
has no effect on the inductive reactance

ANSWER DOWNLOAD EXAMIANS APP

Electronic Principles
Which one of the following phrases best describes residual magnetism?

None of these
The force of attraction between the poles of a permanent and temporary magnetic field
Magnetism that remains in the core of an electromagnet after the current through the coil is turned off
The circular magnetic field that surrounds a conductor carrying a current
The amount of magnetic flux that is not confined to the core material of an electromagnet

ANSWER DOWNLOAD EXAMIANS APP

Electronic Principles
What is a negative ion?

An atom that contains more electrons than protons
An atom that contains more electrons than neutrons
An atom that contains more protons than neutrons
None of these
An atom that contains more protons than electrons

ANSWER DOWNLOAD EXAMIANS APP