Completion
Complete each
statement.
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1.
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RL and RC ____________ are also known as first-order circuits.
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2.
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Finding the natural responce requires finding the voltage and current at the
terminals of the resistor after the switch has been __________, that is, after the source has been
disconnected and the inductor begins releasing energy.
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3.
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The ________ constant is an important parameter for first-order circuits, so
mentioning several of its characteristics is worthwhile.
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4.
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The existance of current in a RL circuit is a momentary event and is referred to
as the ________ response of the circuit.
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5.
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Te response that exists a long time after the switching has taken place is
called the ____________ response.
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6.
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Any first-order circuit is characterized, in part, by the value of its _______
constant.
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7.
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Recall that a capacitor behaves as an open circuit in the presence of a constant
voltage. Thus the voltage source cannot sustain a current, and so the source voltage appears
across the __________ terminals.
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8.
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The response of a circuit to the sudden application of a constant voltage or
current source is referred to as the ________ response of the circuit.
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9.
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The general approach to finding either the natural response or the step response
of the first-order RL and RC circuits is based on their __________ equations having the same
form.
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10.
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Whenever switching occurs more than once in a circuit, we have __________
switching.
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11.
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Recall that anything but inductive currents and capacitive voltages can change
instantaneously at the time of ___________.
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12.
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A circuit may grow, rather than decay, exponentially with time. This type
of response, called an _________ response, is possible if the circuit contains dependent
sources.
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Matching
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a. | sequential switching | c. | natural response | b. | unbounded response | d. | step response |
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13.
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The currents and voltages that exist when stored energy is released to a
circuit that contains no independent sources.
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14.
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The currents and voltages that result from abrupt changes in dc sources
connected to a circuit. Stored energy may or may not be present at the time the abrupt changes
take place.
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15.
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In first-order circuits is analyzed by dividing the analysis into time
intervals corresponding to specific switch positions. Initial values for a particular interval
are determined from the solution corresponding to the immediately preceding interval.
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16.
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Occurs when the Thevenin resitance is negative, which is possible when the
first-order circuit contains dependent sources.
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