Electronic Principles
At room temperature an intrinsic silicon crystal acts approximately like

None of these
a battery
an insulator
a conductor
a piece of copper wire

ANSWER DOWNLOAD EXAMIANS APP

Electronic Principles
Which one of the following principles best describes the basic operation of a generator?

Current flowing through a conductor generates a magnetic field
Current is induced in a conductor that is moving through a magnetic field
Like magnetic poles attract; unlike poles repel
Like magnetic poles repel; unlike poles attract
None of these

ANSWER DOWNLOAD EXAMIANS APP

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

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

ANSWER DOWNLOAD EXAMIANS APP