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TLE Vol II > Electronics > Flashcards

Electronics Flashcards

1
Q

the branch of Science that deals with study of movements, behaviors and flow of electrons which resulted to numerous components that manipulates its characteristics

A

ELECTRONICS

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2
Q

positively charged sub atomic particle

A

PROTON

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3
Q

negatively charged sub atomic particle

A

ELECTRON

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4
Q

neutral sub atomic particle

A

NEUTRON

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5
Q

center of an atom composing neutron and proton

A

NUCLEUS

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6
Q

A single electron or two or more electrons in the outer most shell of an atom

A

Valence Electron

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7
Q
  • In electronics is a substance in which electrons move easily from atom to atom with the application of voltage.
  • Usually has 1-3 valence electrons
  • All metals are conductors regardless of its atomic structure or valence electron.
A

CONDUCTOR

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8
Q
  • Is a material whose internal electric charges do not flow freely.
  • Insulators do not conduct because they have a full or nearly full valence shell and thus their electrons are tightly bound.
  • Usually has more than 4 valence electrons
A

INSULATOR

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9
Q
  • A solid substance that has a conductivity between that of an insulator and that of a conductor, either due to the addition of an impurity or because of temperature effects.
  • are made from materials that have four (4) valence electrons in their outer orbits
A

SEMICONDUCTOR

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10
Q

is a form of energy that can be carried by conducting wires and is used for heating and lighting, and to provide power for machines.

A

ELECTRICITY

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11
Q

is a measure of the flow of charge, as, for example, charge flowing through a wire. Its unit of measurement is Amperes (I).

A

CURRENT

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12
Q

is the force that causes current to flow through a circuit or conductor wire. Its unit of measurement is Voltage (V).

A

Electromotive force (emf)

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13
Q

is an electrical quantity that measures how the device or material reduces the electric current flowing through it. Measured in Ohms (SEE SIGN).

A

RESISTANCE

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14
Q

is the ability of a component or circuit to collect and store energy in the form of an electrical charge. Measured in Farads (F).

A

Capacitance

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15
Q

is the property of an electrical conductor by which a change in electric current through it induces an electromotive force (voltage) in the conductor. Measured in Henry (H).

A

Inductance

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16
Q

refers to the electrical power consumption of a device. Measured in Watts or Kilowatts (KW).

A

WATTAGE

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17
Q

is a flow of electrical current, which repeatedly reverses direction in an electrical circuit. These are current in your electrical outlets.

A

Alternating Current (AC)

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18
Q

is the one-way flow of current—electrons move in the same direction. These current are found in batteries.

A

Direct Current (DC)

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19
Q

is the reference point in an electrical circuit from which voltages are measured, a common return path for electric current, or a direct physical connection to the earth.

A

GROUND

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20
Q

It is the conductor of an electrical component or device that provides a point of connection to external circuits.

A

TERMINAL

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21
Q

A collective term applied to the positive (+) and negative ( - ) ends of a magnet or electrical mechanism such as a coil or battery.

A

POLARITY

22
Q

A closed path in which electrons from a voltage or current source flow. Circuits can be in series, parallel, or in any combination of the two.

A

CIRCUIT

23
Q

are those that don’t have the ability to amplify or process electrical signal.

A

PASSIVE COMPONENTS

24
Q

is a two-terminal passive electronics component, used to oppose or limit the current.

A

Resistors

25
Q

A component that is used to stores electrical energy in the form of an electric field and release them whenever desired. Measured in Farads

A

Capacitors

26
Q

An inductor is also referred as AC resistor which stores electrical energy in the form of magnetic energy. Measured in Henry.

A

Inductors

27
Q

is a static device which is used for increasing or decreasing the alternating voltages in electric power applications through the process of electromagnetic induction.

A

TRANSFORMER

28
Q

These components rely on a source of energy and are able to control the electron flow through them. They have the ability to amplify or process electrical signals.

A

ACTIVE COMPONENTS

29
Q

is a device that allows current to flow in one direction and usually made with semiconductor material.

A

DIODE

30
Q

is a three terminal semiconductor device. Mostly it is used as switching device and also as an amplifier.

A

TRANSISTOR

31
Q

is a special component which is fabricated with thousands of transistors, resistors, diodes and other electronic components on a tiny silicon chip.

A

Integrated Circuit (IC)

32
Q

is a flat display technology, which is mostly used in applications like computer monitors, cell phone display, calculators, etc

A

Liquid Crystal Display (LCD)

33
Q

are most common power source for standalone industrial, domestic and handheld device applications. It converts chemical energy into electrical energy through electrochemical discharge reactions.

Connecting two batteries in series sums up the total voltages. For example two batteries 5volts each connected in series has a total voltage of 10volts.

A

BATTERIES

34
Q

is a type of electric battery, commonly used for portable electrical devices

A

Dry Cell Batteries

35
Q

are dry cell batteries that can’t be recharged.

A

Primary Cell

36
Q

are dry cell batteries that can be recharged.

A

Secondary Cell

37
Q

are batteries used on vehicles.

A

Wet Cell batteries

38
Q

is a solderless device for temporary prototype with electronics and test circuit designs. Most electronic components in electronic circuits can be interconnected by inserting their leads or terminals into the holes and then making connections through wires.

A

Bread board

39
Q

mechanically supports and electrically connects electronic components permanently. Components are generally soldered onto the PCB to both electrically connect and mechanically fasten them to it.

A

PCB or Printed Circuit Board

40
Q

is traditionally the process of using strong acid or mordant to cut into the unprotected parts of a metal surface. Modern etching uses computers

A

Etching

41
Q

is a process in which two or more metal items are joined together by melting and then flowing a filler metal into the joint—the filler metal having a relatively low melting point.

A

Soldering

42
Q

unit of measurement for current

A

Amperes (I)

43
Q

unit of measurement for Electromotive force (emf)

A

Voltage (V)

44
Q

unit of measurement for resistance

A

Ohms (see sign)

45
Q

unit of measurement for Capacitance

A

Farads (F)

46
Q

unit of measurement for Inductance

A

Henry (H)

47
Q

unit of measurement for wattage

A

Watts or Kilowatts (KW)

48
Q

4 PASSIVE COMPONENTS

A

RESISTORS
CAPACITORS
INDUCTORS
TRANSFORMERS

49
Q

7 ACTIVE COMPONENTS

A 
DIODE
TRANSISTOR
Integrated Circuit (IC) 
Liquid Crystal Display (LCD) 
Batteries
Bread board 
PCB or Printed Circuit Board
50
Q

2 TYPES OF BATTERIES

A

Dry Cell Batteries

Wet Cell batteries

51
Q

2 TYPES OF DRY CELL BATTERIES

A

Primary Cell

Secondary Cell

TLE Vol II (1 decks)

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