Electronic Principles
A device that converts chemical energy to electrical energy is called a:

thermocouple
chemical cell
electric device
None of these
solar cell

ANSWER DOWNLOAD EXAMIANS APP

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
has no effect on the 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

ANSWER DOWNLOAD EXAMIANS APP

Electronic Principles
A low-pass filter:

has no effect on ac signals
passes lower-frequency signals and reduces higher-frequency signals
None of these
passes higher-frequency signals and reduces lower-frequency signals
reduces the level of all frequencies by a significant amount

ANSWER DOWNLOAD EXAMIANS APP

Electronic Principles
What is the primary difference between primary and secondary cell batteries?

Primary-cell batteries can be recharged and used many times, whereas secondary-cell batteries cannot be properly recharged
Primary-cell batteries must be recharged at a much slower rate that secondary-cell batteries
Secondary-cell batteries can be recharged and used many times, whereas primary-cell batteries cannot be properly recharged
None of these
Primary-cell batteries use chemical cells, whereas secondary-cell batteries use an alternative energy source, such as thermal or magnetic energy, to supplement their outputs

ANSWER DOWNLOAD EXAMIANS APP

Electronic Principles
A high-pass filter:

passes lower-frequency signals and reduces higher-frequency signals
None of these
has no effect on ac signals
increases the level of all frequencies by a significant amount
passes higher-frequency signals and reduces lower-frequency signals

ANSWER DOWNLOAD EXAMIANS APP
MORE MCQ ON Electronic Principles