Electronic Principles
Thevenin theorem replaces a complicated circuit facing a load by an

None of these
Ideal voltage source and parallel resistor
Ideal current source and series resistor
Ideal current source and parallel resistor
Ideal voltage source and series resistor

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Electronic Principles
The peak value of a sine waveform is:

the amplitude at 70.7% of the maximum value
None of these
the amplitude at 1.41 times the maximum value
the amplitude at 90% of the maximum value
the maximum positive or negative value

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Electronic Principles
What is a negative ion?

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

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Electronic Principles
Which one of the following statements is true for the currents in a parallel RL circuit?

The total current leads the total voltage by less than 90
The total current is equal to the sum of the currents through the resistance and inductance
None of these
The current always has the same amplitude and phase for every part of the circuit
The total current is less than the sum of the currents through the resistance and inductance

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Electronic Principles
The period of a waveform is:

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

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