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BASIC ELECTRONICS > EVOLUTION OF ELECTRONICS > Flashcards

EVOLUTION OF ELECTRONICS Flashcards

1
Q

Wrote about the attraction
of straw and dust to
fossilized tree sap called
amber + year discovered

A

Thales 600BC

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2
Q

Discovered that electricity
is produced when two
different metals are in
contact with moistened
cloth.

A

Allesandro Volta 1800

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3
Q

Discovered the force
between electrically
charged objects. and when

A

Charles Coulomb 1785

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4
Q

Determined that magnetic
field is present when
current flows in a wire. and when

A

Hans Oersted 1820

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5
Q

Determined the
relationship between
current and voltage in an
electric circuit. and when

A

George Ohm 1826

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6
Q

Discovered the correct
theory of electromagnetic
force. and when

A

Andrew Ampere 1827

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7
Q

Discovered the principle of
electromagnetic induction.
He invented the electric
motor. and when

A

Micheal Faraday 1831

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8
Q

Invented the incandescent
bulb. and when

A

Thomas Alva Edison 1879

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9
Q

Developed the first
practical invention in radio
telegraphy and received
the first trans-Atlantic radio
signal in 1901. and when

A

Guglielmo Marconi 1895

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10
Q

Discovered the electron. and when

A

Joseph John Thomson 1897

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11
Q

Invented the telegraph and
the code that bears his
name. and when

A

Samuel Morse 1832/1844

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12
Q

Invented the vacuum tube. and when

A

Ambrose Fleming and Lee
de Forest 1902

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13
Q

Invented the first visible
spectrum LED. and when

A

Nick Holonyak 1962

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14
Q

Invented the transistor. and when

A

John Bardeen, William
Shockley and Walter
Brattain 1948

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15
Q

Invented the integrated
circuit. and when

A

Robert Noyce and Jack
Kilby 1958

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16
Q

In electronics, the simplest circuit is formed by using a ____, a ____ and a ______ ______

A

wire
load
supply voltage

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17
Q

_______electronic components are components that do not generate
energy but can store or dissipate it. It includes resistors, inductors and
capacitors.

A

Passive

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18
Q

____ electronic components are components that rely on an external
source to control or modify electrical signals. It includes diode, transistor,
MOSFETs, etc.

A

Active

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19
Q

a passive component that limits the flow of current.

A

Resistor

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20
Q

measured in ohms, is the characteristic of resistor which determines how good the
resistor can oppose current flow

A

Resistance

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21
Q

are resistors whose resistances do not change when subjected to different conditions

A

Fixed resistors

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22
Q

are resistors that can
change its resistance. Usually, these types of resistors are rated according to its
maximum value.

A

variable type

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23
Q

are devices that can store electrical energy in the form of DC
voltage.

A

capacitors

24
Q

The ability of capacitor to store electrical energy is called______and is measured in farad.

A

capacitance

25
Q

has the same ability as in the capacitor, but instead of directly storing
the voltage, it is producing it by means of electromagnetic field, this is called induced
voltage.

A

Inductors

26
Q

The ______ of the inductor determines how good an inductor can induce
voltage and it is measured in terms of henry.

A

inductance

27
Q

is an example of inductor that
the student will use in their basic power supply design.

A

transformer

28
Q

is used to construct the circuit without the need for soldering iron and
soldering lead. It is a solderless connection for the electronic components used in a
circuit.

A

Breadboard

29
Q

an example of test instrument that can measure resistance, voltage
and current. It is also called volt-ohm-milliammeter.

A

Multimeter

30
Q

a hand tool used to join two or more electronic components by
heating their metal terminals and melting soldering lead onto them.

A

soldering iron

31
Q

are hand tools designed for gripping, bending, cutting and manipulating
various materials.

A

pliers

32
Q

is a hand tool used to remove the insulation or protective coating
from electrical wires to expose the conductive wire.

A

wire stripper

33
Q

often referred as desoldering pump, is used to remove the
solder and thereby removing the connection between terminals or electronic components.

A

desoldering tool

34
Q

is used as the filler material in soldering process. It is a metal
alloy with a low melting point that is used to join two or more metal surfaces.

A

soldering lead

35
Q

is a flat, rigid board made of non-conductive material that
serves as the base for mounting and connecting electronic components.

A

A printed circuit board

36
Q

is a chemical compound used in making PCB designs.
The chemical dissolves the copper exposed on the PCB so the only remaining copper
will be the design which was covered by masking tape.

A

ferric chloride, FeC13,

37
Q

Effect to your Body: Threshold of Sensation
Amount of Current, mA: ?

A

0– 1.5

38
Q

Effect to your Body: Mild shock
Amount of Current, mA: ?

A

1-5

39
Q

Effect to your Body: pain
Amount of Current, mA: ?

A

3-10

40
Q

Effect to your Body: Can’t let go
Amount of Current, mA: ?

A

10-40

41
Q

Effect to your Body: Respiratory paralysis
Amount of Current, mA: ?

A

30-75

42
Q

Effect to your Body: Ventricular Fibrillations

Amount of Current, mA: ?

A

75-100

43
Q

Effect to your Body: Heart stops beating
Amount of Current, mA: ?

A

250-300

44
Q

Effect to your Body: Organ burns
Amount of Current, mA: ?

A

5000-6000

45
Q

sources are voltages from an outlet or coming from the
transformer.) flows one way, then the other way, continuously reversing
directions.

A

Alternating Current (AC)

46
Q

sources are voltages from a battery or power supply. a current that always flows in one direction.

A

Direct Current (DC)

47
Q

The amount of current flow in a circuit depends on this. This are electrons are the electrons at the outermost layer of the atomic structure

A

valence electrons

48
Q

are particles of matter that are not in motion, it is represented by the letter
symbol Q and is measured in coulombs (C)

A

Charge

49
Q

particles of matter are in motion,
it is called____. measured in ampere

A

Current

50
Q

formula for charge

A

Q = It

51
Q

One ampere of current requires_____ number of electrons

A

6.25 x 10^18

52
Q

The charge of each electron

A

1/6.25 x 10^18 = 0.16 x 10^-18 C

53
Q

is a current flow that starts from the negative terminal
of the battery and ends to the positive terminal of the battery

A

electron flow

54
Q

is the opposite of the electron flow.

A

conventional current
flow

55
Q

the ability of the material to allow current flow and measured in
mho or siemens ( or S)

A

conductance (G)

56
Q

Resistance is the______of conductance.

A

reciprocal

BASIC ELECTRONICS (3 decks)

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