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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
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.
Inductors
26
The ______ of the inductor determines how good an inductor can induce voltage and it is measured in terms of henry.
inductance
27
is an example of inductor that the student will use in their basic power supply design.
transformer
28
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.
Breadboard
29
an example of test instrument that can measure resistance, voltage and current. It is also called volt-ohm-milliammeter.
Multimeter
30
a hand tool used to join two or more electronic components by heating their metal terminals and melting soldering lead onto them.
soldering iron
31
are hand tools designed for gripping, bending, cutting and manipulating various materials.
pliers
32
is a hand tool used to remove the insulation or protective coating from electrical wires to expose the conductive wire.
wire stripper
33
often referred as desoldering pump, is used to remove the solder and thereby removing the connection between terminals or electronic components.
desoldering tool
34
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.
soldering lead
35
is a flat, rigid board made of non-conductive material that serves as the base for mounting and connecting electronic components.
A printed circuit board
36
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.
ferric chloride, FeC13,
37
Effect to your Body: Threshold of Sensation Amount of Current, mA: ?
0– 1.5
38
Effect to your Body: Mild shock Amount of Current, mA: ?
1-5
39
Effect to your Body: pain Amount of Current, mA: ?
3-10
40
Effect to your Body: Can’t let go Amount of Current, mA: ?
10-40
41
Effect to your Body: Respiratory paralysis Amount of Current, mA: ?
30-75
42
Effect to your Body: Ventricular Fibrillations Amount of Current, mA: ?
75-100
43
Effect to your Body: Heart stops beating Amount of Current, mA: ?
250-300
44
Effect to your Body: Organ burns Amount of Current, mA: ?
5000-6000
45
sources are voltages from an outlet or coming from the transformer.) flows one way, then the other way, continuously reversing directions.
Alternating Current (AC)
46
sources are voltages from a battery or power supply. a current that always flows in one direction.
Direct Current (DC)
47
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
valence electrons
48
are particles of matter that are not in motion, it is represented by the letter symbol Q and is measured in coulombs (C)
Charge
49
particles of matter are in motion, it is called____. measured in ampere
Current
50
formula for charge
Q = It
51
One ampere of current requires_____ number of electrons
6.25 x 10^18
52
The charge of each electron
1/6.25 x 10^18 = 0.16 x 10^-18 C
53
is a current flow that starts from the negative terminal of the battery and ends to the positive terminal of the battery
electron flow
54
is the opposite of the electron flow.
conventional current flow
55
the ability of the material to allow current flow and measured in mho or siemens ( or S)
conductance (G)
56
Resistance is the______of conductance.
reciprocal

BASIC ELECTRONICS (3 decks)

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