Electronic Principles
A circuit has a Norton current of 10 mA and a Norton resistance of 10 kW. What is the Thevenin circuit?

None of these
100 V and a parallel resistance of 10 k Ohm
1000 V and a parallel resistance of 10 kOhm
1000 V and a series resistance of 10 k Ohm
100 V and a series resistance of 10 k Ohm

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Electronic Principles
Which one of the following phrasers best describes flux density?

None of these
The opposition to a build-up of magnetic fields
The concentration of lines of magnetic force
The rate of change of the number of lines of magnetic force
The force that maintains lines of force

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Electronic Principles
Which one of the following statements most accurately describes the nature of inductive reactance?

Inductive reactance is a force that tends to overcome the effects of counter emf
Inductive reactance is an opposition to current flow in ac circuits
Inductive reactance is an opposition to current flow in dc circuits
Inductive reactance is another term for counter emf
None of these

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Electronic Principles
A low-pass filter:

has no effect on ac signals
None of these
reduces the level of all frequencies by a significant amount
passes lower-frequency signals and reduces higher-frequency signals
passes higher-frequency signals and reduces lower-frequency signals

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