Electronic Principles
Current and voltage are said to be in phase when:

None of these
their waveforms are both ac or both dc
All of these
they have the same amplitude and frequency
their waveforms cross through zero and reach positive and negative peaks at the same time

ANSWER DOWNLOAD EXAMIANS APP

Electronic Principles
When a series RLC circuit is operating at its resonant frequency:

inductive reactance is equal to the capacitive reactance
the difference between inductive and capacitive reactance is equal to the resistance
inductive reactance is greater than the capacitive reactance
capacitive reactance is greater than the inductive reactance
None of these

ANSWER DOWNLOAD EXAMIANS APP

Electronic Principles
What is a negative ion?

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

ANSWER DOWNLOAD EXAMIANS APP