Learning Material - Elements of Electric Circuit Flashcards

1
Q

Amber rubbed with other materials it became charged with an UNKNOWN
force that had the power to attract objects

A

Electron

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2
Q

Amber was not the
only material that
could be charged to
attract other objects

A

Elektriks &
Nonelektriks

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3
Q

The piece of charged
glass would repel
some charged objects
and attract others

A

Attraction &
Repulsion

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4
Q

Any object repelled by a
piece of glass rubbed on
silk would have a positive
charge, and any item
repelled by a hard rubber
rod rubbed on wool would
have a negative charge.

A

Positive &
Negative

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5
Q

3 Principle Parts of an atom

A

Electron, Proton, and Neutron

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6
Q

When an electron
receives enough energy
from some other
source, it ____________ into a higher
allowed orbit.

A

quantum
jumps

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7
Q

“Electrical theory”

A

The valence shell of an
atom cannot hold more
than eight electrons

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8
Q

A quantity measurement for electrons

A

The Coulomb

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9
Q

The charge transferred by a current of 1 ampere in
one second

A

The Coulomb

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10
Q

1 C = 6.25 × 1018 electrons

A

The Coulomb

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11
Q

Who discovered Coulomb

A

Charles Augustin de Coulomb, French scientist

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12
Q

____________ of electrostatic charges states
that the force of electrostatic attraction or
repulsion is directly proportional to the product
of the two charges and inversely proportional to
the square of the distance between them

A

Coulomb’s Law

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13
Q

__________ is defined as the potential difference between
two points of a conducting wire carrying a constant
current of 1 ampere when the power dissipated
between these points is 1 watt

A

Volt

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14
Q

Also referred to as _______________, the force
that pushes the electrons through a wire and is
often referred to as electrical pressure

A

electromotive force

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15
Q

the voltage cannot flow, it only pushes the
current through a wire
true or false??

A

True

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16
Q

amount of potential difference
necessary to cause 1 C to produce 1 joule of work

A

1 volt (V)

16
Q

The flow of electrons

A

Current

17
Q

1 A = ?

A

one coulomb per second

18
Q

Who discovered ampere

A

André Ampere

19
Q

Ampere (A)

A

measurement of the
amount of electricity that is flowing
through a circuit

20
Q

____________ theory states that current flows from negative to positive

A

Electron Flow

21
Q

______________ theory states that current flow from positive to negative

A

Conventional Current Flow

22
Q

allows current to flow all the way through it without any obstructions or breakages

A

Closed Circuit,

23
Q

an electrical circuit that allows a current to travel along an unintended path with no or very low electrical impedance

A

SHORT CIRCUIT

24
Q

____________ refers to a circuit that is connected to the Earth or a common reference point

A

GROUNDED CIRCUIT

25
Q

It serves as a safety measure to prevent electrical shock, protect equipment, and reduce fire risk

A

GROUNDED CIRCUIT

26
Q

Good Conductors?

A

Copper, Silver, aluminium, and gold

27
Q

Good Insulators?

A

rubber, plastic, glass, and wood

28
Q

Good Semiconductors?

A

Silicon, germanium

29
Q

Limits the flow of current

A

Resistance

30
Q

Produces a voltage divider

A

Resistance

31
Q
  • Measure of how strongly a material
    opposes the flow of electrical current
A

Resistivity ()

32
Q

the current is directly
proportional to the voltage and inversely
proportional to the resistance

A

DC circuit