Completion
Complete each
statement.
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1.
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Ohms’ law describes ______________ how voltage, current, and resistance in
a circuit are related.
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2.
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Ohm’s law states that current is directly proportionaly to voltage and
____________ proportional to resistance.
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3.
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In electronics, resistance values of thousands or millions of _______ are
common.
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4.
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Energy is the ability to do work, and _______ is the rate at which energy is
used.
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5.
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On watt is the amount of power when one _______ of energy is used in one
second.
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6.
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In electrical utilities field, kilowatts (KW) and _________ (MW) are common
units.
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7.
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Electric motors are commonly rated in __________ (hp) where 1 hp = 746 W.
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8.
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You use a kilowatt-hour of energy when you use the equivalent of _________ W of
power for 1 h.
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9.
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When there is current through a resistance, the collisions of the electrons as
they move through the resistance give off heat, resulting in a conversion of electrical energy to
___________ energy.
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10.
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The power rating is the maximum amount of power that a resistor can dissipate
without being _________ by excessive heat build up.
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11.
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When the power dissipated in a resistor is greater than its rating, the resistor
will become excessively hot. As a result, the resistor may ______ open or its resistance value
may be greatly altered.
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12.
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Utilities univerally have adopted ac for transmitting electricty from generating
station to the user because it can be readily ___________ to high voltages for transmission and low
voltages for the end user.
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13.
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Efficiency is the ratio of the output power  , to the
________ power  .
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14.
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The ___ rating determines the length of time a battery can deliver a certain
amount of current at a rated voltage.
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15.
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Troubleshooting is the application of logical thinking combined with a thorough
knowledge of circuit or system operation to correct a ____________.
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16.
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The basic approach to troubleshooting consists of three steps: analysis,
planning, and __________.
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