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IMA
Quiz 2
23
Other
Undergraduate 1
05/17/2008
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Term
AC
 Definition
Alternating Current
Term
AC flows?
 Definition
in two directions
Term
AC cycles at?
 Definition
60Hz
Term
AC runs at ____ Volts
 Definition
120V
Term
Single Phase AC is used in what type of area?
 Definition
Residential
Term
Three Phase is used in what type of area?
 Definition
Commercial
Term
DC
 Definition
Direct Current
Term
DC flows
 Definition
in one direction
Term
Power =
 Definition
Watts
Term
Currents =
 Definition
Amps (deadly)
Term
Electromotive Force =
 Definition
Volts
Term
Resistance =
 Definition
Ohms in DC
Term
Impedance =
 Definition
Ohms in AC
Term
LED
 Definition
Light Emitting Diode
Term
Transformer
 Definition
Changes Voltage
Term
Capacitor
 Definition
Stores and Supplements Energy
Term
Resistors
 Definition
Restricts flow of electrons
Term
Transistor
 Definition
Amplifies, Detects, or switches
Term
Emitter of a vacuum tube ?
 Definition
Gets power; Conducts electricity
Term
Base of a Vacuum tube
 Definition
Gets signal; Conducts only when charged
Term
Camera Obscura invented when
 Definition
1600's
Term
!st photographic process invented in
 Definition
1820's
Term
Joseph Niepce developed the
 Definition
Heliograph
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