Electronic Principles
Norton's theorem replaces a complicated circuit facing a load by an

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

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Electronic Principles
Which one of the following phrases best describes residual magnetism?

The circular magnetic field that surrounds a conductor carrying a current
None of these
Magnetism that remains in the core of an electromagnet after the current through the coil is turned off
The amount of magnetic flux that is not confined to the core material of an electromagnet
The force of attraction between the poles of a permanent and temporary magnetic field

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

The current always has the same amplitude and phase for every part of the circuit
The total current is equal to the sum of the currents for the resistance and capacitance
The total current is less than the sum of the currents for the resistance and capacitance
None of these
The total current is greater than the sum of the currents for the resistance and capacitance

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Electronic Principles
Which one of the following statements applies to common auto batteries?

Auto batteries are secondary wet-cell batteries
Auto batteries are primary dry-cell batteries
Auto batteries are secondary dry-cell batteries
None of these
Auto batteries are primary wet-cell batteries

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