Electronics

Question 1

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

Answer 1

ELECTRONICS

Question 2

positively charged sub atomic particle

Answer 2

PROTON

Question 3

negatively charged sub atomic particle

Answer 3

ELECTRON

Question 4

neutral sub atomic particle

Answer 4

NEUTRON

Question 5

center of an atom composing neutron and proton

Answer 5

NUCLEUS

Question 6

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

Answer 6

Valence Electron

Question 7

• 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.

Answer 7

CONDUCTOR

Question 8

• 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

Answer 8

INSULATOR

Question 9

• 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

Answer 9

SEMICONDUCTOR

Question 10

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.

Answer 10

ELECTRICITY

Question 11

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

Answer 11

CURRENT

Question 12

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

Answer 12

Electromotive force (emf)

Question 13

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

Answer 13

RESISTANCE

Question 14

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

Answer 14

Capacitance

Question 15

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).

Answer 15

Inductance

Question 16

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

Answer 16

WATTAGE

Question 17

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

Answer 17

Alternating Current (AC)

Question 18

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

Answer 18

Direct Current (DC)

Question 19

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.

Answer 19

GROUND

Question 20

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

Answer 20

TERMINAL

Question 21

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

Answer 21

POLARITY

Question 22

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.

Answer 22

CIRCUIT

Question 23

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

Answer 23

PASSIVE COMPONENTS

Question 24

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

Answer 24

Resistors

Question 25

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

Answer 25

Capacitors

Question 26

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

Answer 26

Inductors

Question 27

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

Answer 27

TRANSFORMER

Question 28

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.

Answer 28

ACTIVE COMPONENTS

Question 29

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

Answer 29

DIODE

Question 30

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

Answer 30

TRANSISTOR

Question 31

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

Answer 31

Integrated Circuit (IC)

Question 32

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

Answer 32

Liquid Crystal Display (LCD)

Question 33

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.

Answer 33

BATTERIES

Question 34

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

Answer 34

Dry Cell Batteries

Question 35

are dry cell batteries that can’t be recharged.

Answer 35

Primary Cell

Question 36

are dry cell batteries that can be recharged.

Answer 36

Secondary Cell

Question 37

are batteries used on vehicles.

Answer 37

Wet Cell batteries

Question 38

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.

Answer 38

Bread board

Question 39

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.

Answer 39

PCB or Printed Circuit Board

Question 40

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

Answer 40

Etching

Question 41

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.

Answer 41

Soldering

Question 42

unit of measurement for current

Answer 42

Amperes (I)

Question 43

unit of measurement for Electromotive force (emf)

Answer 43

Voltage (V)

Question 44

unit of measurement for resistance

Answer 44

Ohms (see sign)

Question 45

unit of measurement for Capacitance

Answer 45

Farads (F)

Question 46

unit of measurement for Inductance

Answer 46

Henry (H)

Question 47

unit of measurement for wattage

Answer 47

Watts or Kilowatts (KW)

Question 48

4 PASSIVE COMPONENTS

Answer 48

RESISTORS CAPACITORS INDUCTORS TRANSFORMERS

Question 49

7 ACTIVE COMPONENTS

Answer 49

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

Question 50

2 TYPES OF BATTERIES

Answer 50

Dry Cell Batteries | Wet Cell batteries

Question 51

2 TYPES OF DRY CELL BATTERIES

Answer 51

Primary Cell | Secondary Cell