Completion Complete each
statement.
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1.
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______________ engineering is an wxciting and challenging profession for anyone
who has a genuine interest in, and aptitude for, applied science and mathematics.
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2.
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__________ engineering is the profession concerned with systems that produce,
transmit, and measure electric signals.
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3.
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__________ systems are electrical systems that generate, transmit, and
distribute information.
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4.
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___________ systems use electric signals to process information ranging from
word processing to mathematical computations.
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5.
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Control systems use electric signals to _________ processes.
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6.
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Power systems generate and _________ electric power.
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7.
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Signal-processing systems act on electric signals that represent
____________.
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8.
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Considerable _____________ takes place amoung the engineering disciplines
involved in designing and operating these five classes of systems.
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9.
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An _________ circuit is a mathematical model that approximates the behavior of
an actual electrical system.
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10.
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Note that the term electric circuit is commonly used to refer to an actual
electrical _________ as well as to the model that represents it.
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11.
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Three basic assumptions ________ us to use circuit theory, rather than
electromagnetic field theory, to study a physical system represented by an electric circuit.
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12.
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Electrical effects happen instantaneously __________ a system.
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13.
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The net charge on every component in the system is always _____.
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14.
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There is no magnetic coupling between the components in a _________.
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15.
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The wavelength l (lamda) is the velocity divided by
the _________ rate, or frequency, of the signal; that is l=c/f.
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16.
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The frequency f is measured in ________ (Hz).
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17.
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Power systems in the united states operte at ____ Hz.
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18.
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A commonlly used mathematical model for electrical systems is a ________
model.
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19.
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The elements that comprise the circuit model are called _______ circuit
components.
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20.
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The physical ____________ is an actual electrical system, constructed from
actual electrical components.
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21.
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The concept of ________ charge is the basis for describing all electrical
phenomena.
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22.
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The charge is bipolar, meaning that electrical effects are described in terms of
________ and negative charges.
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23.
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The electric __________ exists in discrete quantities, which are integral
multiples of the elctronic charge, .
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24.
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Electrical effects are attributed to both the ___________ of charge and charges
in motion.
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25.
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Voltage is the energy per unit ________ created by the separation. We
express this ratio in differential form as .
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26.
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The rate of charge flow is known as the electric _________, which is expressed a
.
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27.
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The following picture shows an _______ basic circuit element.
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28.
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We use the word _____ to imply that a basic circuit element does not exist as a
realizable physical component.
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29.
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We use the word basic to imply that the circuit element cannot be further
________ or subdivided into other elements.
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30.
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The most widely used sign convention applied to these references is call the
_______ sign convention.
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31.
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Whenever the reference direction for the currnet in an element is in the
direction of the reference voltage drop across the element, use a ___________ sign in any expression
that relates the voltage to the current. Otherwise use a negative sign.
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32.
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Power is the time rate of expending or absorbing _________.
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33.
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Mathematically, energy per unit time is expressed in the form of a ________, or
.
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34.
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Power associated with a basic circuit element is simply the product of the
current in the element and the _________ across the element.
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35.
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If the power is positive (that is, if p>0), power is being __________ to the
circuit inside the box.
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36.
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If the power is negative (that is, if p < 0), power is being __________ from
the circuit inside the box.
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Matching
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Read through the 6 Problem Solving steps in your book match the
steps. a. | Step 1 | d. | Step 4 | b. | Step 2 | e. | Step 5 | c. | Step
3 | f. | Step
6 |
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37.
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Think of several solution methods and decide on a way of choosing among
them.
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38.
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Test your solution.
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39.
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Use your creativity.
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40.
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Identify what’s given and what’s to be found.
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41.
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Calculate a solution.
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42.
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Sketch a circuit diagram or other visual model.
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