Electronic Principles
Which one of the following statements regarding ac circuits is correct?

Current leads the voltage through a resistor
Current and voltages are in phase through a resistor
Current lags the voltage through a resistor
None of these
All of these

ANSWER DOWNLOAD EXAMIANS APP

Electronic Principles
What is the difference between a conductor and an insulator?

The difference between conductors and insulators depends on how they are used
A conductor allows current to flow much easier than an insulator does
None of these
An insulator has an excessive number of free electrons, while a conductor has a few free electrons or none at all
An insulator allows current to flow much easier than a conductor does

ANSWER DOWNLOAD EXAMIANS APP

Electronic Principles
When applying a square waveform to a capacitor, the circuit tends to:

peak the current and round off the voltage waveforms
peak the voltage and round off the current waveforms
None of these
round off both the voltage and current waveforms
peak both the voltage and current waveforms

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