CSE :: Electronic Principles
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Which one of the following devices is most often used for measuring opposition to current flow in a circuit?
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What form of energy is used to maintain an imbalance of charges between the terminals of a battery?
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Which one of the following statements best applies to a parallel RLC circuit?
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The equivalent of 1 micro A is:
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Which one of the following statements best describes magnetic hysteresis?
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Which one of the following phrases best describes residual magnetism?
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A transformer has a primary voltage of 120 V rms and a secondary voltage of 25 V rms. If the secondary current is 1A rms, what is the primary current?
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Household light bulbs have a given power rating, and they operate at 120 V. Which one of the following equations most directly provides the current rating of these light bulbs?
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Which one of the following phrases most accurately describes a purely inductive circuit?
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The knee voltage of a diode is approximately equal to the
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A.
The voltage waveform for each component always has the same amplitude and phase as the applied voltage
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B.
The sum of the current is always less than the applied current
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C.
The current waveform for each component always has the same amplitude and phase as the applied current
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D.
All of the above
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E.
None of the above
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A.
Hysteresis is the amount of magnetic flux that is not confined to the core material of an electromagnet
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B.
Hysteresis is most apparent when a steady amount of current is lowing through the coil of an electromagnet
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C.
Hysteresis is most apparent when the current through the coil of an electromagnet changes frequently
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D.
Hysteresis is most apparent when the core material is saturated
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E.
None of the above
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A.
Magnetism that remains in the core of an electromagnet after the current through the coil is turned off
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B.
The force of attraction between the poles of a permanent and temporary magnetic field
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C.
The amount of magnetic flux that is not confined to the core material of an electromagnet
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D.
The circular magnetic field that surrounds a conductor carrying a current
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E.
None of the above
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