Electronic Principles
Which one of the following kinds of materials has the highest permeability?

A diamagnetic material
A paramagnetic material
None of these
A ferromagnetic material
All of these

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Electronic Principles
The period of a waveform is:

equal to 0.707 times the peak amplitude
None of these
the number of cycles completed in one second
the time required to complete one full cycle
the time required for the voltage to rise from 10% to 90% of the peak amplitude

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

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

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Electronic Principles
Which one of the following statements is true for the impedance of a series RC circuit?

None of these
The impedance is equal to the sum of the resistance and capacitive reactance
The impedance is greater than either the resistance or capacitive reactance but less than their sum
The impedance is greater than the sum of the resistance and capacitive reactance
The impedance is less than the sum of the resistance and capacitive reactance

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