Electronic Principles
Which one of the following properties of a magnetic circuit can be directly compared to voltage in an electrical circuit?

Flux density
Reluctance
None of these
Magnetomotive force
Number of lines of force

ANSWER DOWNLOAD EXAMIANS APP

Electronic Principles
Which one of the following statements most accurately reflects the nature of ac power?

The current in an ac circuit flows in one direction at a steady level
The current in an ac circuit flows in two directions at the same time
The current in an ac circuit flows in one direction, but changes value periodically
The current in an ac circuit changes direction periodically
None of these

ANSWER DOWNLOAD EXAMIANS APP

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

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

ANSWER DOWNLOAD EXAMIANS APP