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ROB Electrical
Electrical Quantities and Components
73
Electrical Engineering
12th Grade
10/02/2013

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Cards

Term
conductance
Definition
The ease with which current flows through a circuit is called ______________
Term
Siemen
Definition
The unit of measurement for conductance is the ____________
Term
resistance
Definition
Conductance is the reciprocal of a________________.
Term
Kilo
Definition
_______equals 1,000 times the base unit.
Term
Mega
Definition
__________equals 1,000,000 times the base unit
Term
Giga
Definition
________equals 1,000,000,000 times the base unit.
Term
Tera
Definition
____________equals 1,000,000,000,000 times the base unit
Term
1/1000
Definition
Ten to the negative 3rd power is _____________ of the base unit.
Term
1/1,000,000
Definition
Ten to the negative 6th power is _____________of the base unit.
Term
one
Definition
Ten to the zero power is ____.
Term
Milli
Definition
___________is the metric prefix used with ten to the negative 3rd power.
Term
Micro
Definition
___________is the metric prefix used with ten to the negative 6th power.
Term
Nano
Definition
_________is the metric prefix used with ten to the negative 9th power.
Term
Pico
Definition
____________is the metric prefix used with ten to the negative 12th power.
Term
25 microamps
Definition
There are ______________in 0.000 025 amps.
Term
25 nanoamps
Definition
There are _______________in 0.000 000 025 amps.
Term
25 picoamps
Definition
There are ___________________ in 0.000 000 000 025 amps.
Term
120 milliamps
Definition
There are ___________in 0.12 amps.
Term
1,000
Definition
A million volts is equal to ___________ kilovolts.
Term
mega
Definition
The abbreviation for ___________is "M"
Term
micro
Definition
The abbreviation for _______is "u" (Greek letter mu).
Term
nano
Definition
The abbreviation for ______is “n” (lowercase n).
Term
conductive
Definition
The more ____________ a material, the lower its physical resistance.
Term
lower
Definition
The larger the cross-sectional area of a material, the _____________its resistance.
Term
positive
Definition
With a _____________ temperature coefficient, as the temperature of the metal conductor increases so does the resistance.
Term
smaller
Definition
The ___________ the American Standard Wire Gauge (AWG) number, the larger the wire’s current-handling capability
Term
smaller
Definition
The smaller the American Standard Wire Gauge (AWG) number, the ___________the resistance for a given number of feet of wire.
Term
three
Definition
For every ______________American Standard Wire Gauge (AWG) size increases, the current-handling capability will be cut in half.
Term
variable
Definition
A _____________resistor can be adjusted to any resistance up to the value of the resistor.
Term
Red-Red-Red-Silver
Definition
A resistor with a color band of _________________ is equal to 2.2 kilohms with a +/– 10% tolerance
Term
ammeter
Definition
To measure current with an __________, you would break the circuit and place the meter where you broke the circuit, being sure to observe polarity
Term
Resistance
Definition
______________measurements must be taken with power in the circuit turned off.
Term
current
Definition
To measure current with a digital meter, you place the meter within the ____________path
Term
Schematic diagrams
Definition
_______________show the electrical connections of the circuit.
Term
high-voltage circuits
Definition
When working with _________________, work with only one hand at a time to prevent electrical shock.
Term
absolute zero
Definition
When certain metals are cooled to almost _______________, virtually all of their resistance to current flow disappears.
Term
zero
Definition
The resistance of a superconducting material is near _____________ohms.
Term
Superconductivity
Definition
_______________ only occurs in a given type of metal at temperatures below some critical temperature.
Term
cryogenics
Definition
The study and production of very cold temperatures is called _________________.
Term
ceramic
Definition
Some __________materials lose most of their resistance to current flow at temperatures considerably higher than absolute zero.
Term
chip
Definition
Surface mount resistors are often referred to as "_________" resistors.
Term
five
Definition
Precision resistors often use a ______-band color code.
Term
four
Definition
The first _______bands on a precision resistor indicate the resistance value of the resistor.
Term
red
Definition
A _______fifth band on a precision resistor indicates a tolerance value of +/– 2%.
Term
blue
Definition
A ______fifth band on a precision resistor indicates a tolerance value of +/– 0.25%.
Term
green
Definition
A _______fifth band on a precision resistor indicates a tolerance value of +/– 0.5%.
Term
violet
Definition
A _______fifth band on a precision resistor indicates a tolerance value of +/– 0.1%.
Term
M
Definition
The letter _____signifies a 20% tolerance.
Term
K
Definition
The letter ____signifies a 10% tolerance.
Term
J
Definition
The letter ____ signifies a 5% tolerance.
Term
F
Definition
The letter _____ signifies a 1% tolerance.
Term
20
Definition
A resistor with the color code Brown, Black, and Red is equal to 1,000 ohms, _____ %.
Term
1.0 ohm, 20%
Definition
A resistor with the color code Brown, Black, and Gold is equal to ________ _____
Term
conductance
Definition
Siemens is a unit for:
Term
micro
Definition
One millionth of the base unit would use the metric prefix:
Term
lower AWG size
Definition
____ would NOT increase the resistance of the wire.
Term
tolerance
Definition
The fifth band in a precision resistor represents the:
Term
increases
Definition
As their operating temperature is increased, the resistance of most metal conductors:
Term
superconductivity
Definition
The principle that describes how certain materials, when cooled to near absolute zero, lose nearly all electrical resistance is called:
Term
nearly zero ohms
Definition
The resistance of a superconducting material is ____.
Term
small size
Definition
Surface mount resistors are useful in compact equipment due to:
Term
1/4
Definition
Surface mount resistors have power ratings of 1/8 to ____ watt(s).
Term
glass plate
Definition
Surface mount resistors are constructed by depositing a layer of carbon on a:
Term
directly to the conductive paths of a circuit board
Definition
The leads of a surface mount resistor are soldered:
Term
0.5%
Definition
A green fifth band on a precision resistor indicates a tolerance value of +/– :
Term
0.10%
Definition
violet fifth band on a precision resistor indicates a tolerance value of +/– :
Term
220 ohms
Definition
A surface mount "chip" resistor is marked with the three-digit code 221. The resistance value is:
Term
33 kohms
Definition
A surface mount "chip" resistor is marked with the three-digit code 333. The resistance value is:
Term
22,200 ohms
Definition
A resistor in a circuit has the numerical code 2222K. The resistance value is:
Term
100 megohms, 10%
Definition
A resistor has a color code of Brown, Black, Violet, and Silver. The value and tolerance of the resistor
Term
1.0 ohm, 5%
Definition
A resistor has a color code of Brown, Black, Gold, and Gold. The value and tolerance of the resistor is:
Term
1,110 ohms, 1%
Definition
A resistor has a color code of Brown, Black, Black, and Silver. The value and tolerance of the resistor is:
Term
1.110 kilohms, 1%
Definition
A circuit consists of a six-volt lantern battery and a resistor that is color-coded Brown, Brown, Brown, Brown, and Brown. What is the value of the resistor?
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