Inductors and Capacitors
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15 Terms
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inductor
a passive element designed to store energy in its magnetic field.
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Inductor
used in power supplies, transformers, radios, TVs, radars, and electric motors.
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Inductor
a component that resists changes in current.
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(H) henry
unit of inductance
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John Henry
The unit of inductance is the henry (H), named in honor of the American inventor
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T
The current through an inductor cannot change instantaneously. T/F
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T
An inductor acts like a short circuit to dc. T/F
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dissipate Energy
the ideal inductor does not _____
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Michael Faraday
an English chemist and physicist, was probably the greatest
experimentalist who ever lived. His discovery of electromagnetic induction in 1831 was a major breakthrough in engineering because it provided a way of generating electricity.
experimentalist who ever lived. His discovery of electromagnetic induction in 1831 was a major breakthrough in engineering because it provided a way of generating electricity.
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1. The surface area of the plates
2. The spacing between the plates
3. The permittivity of the material
2. The spacing between the plates
3. The permittivity of the material
In general, three factors determine the value of the capacitance:
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Polyester capacitors
light in weight, stable, and their change with temperature is predictable.
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Electrolytic capacitors
produce very high capacitance.
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Film capacitors
rolled and housed in metal or plastic films.
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F. open circuit
A capacitor is a closed circuit to dc. T/F
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