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Electrical Final > 103E&F > Flashcards

103E&F Flashcards

1
Q

EMF is

A

Electromotive force

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2
Q

Electromotive force is

A

Potential energy that is ready to do electrical work

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3
Q

The positive plate in a cell is

A

Cathode

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4
Q

The negative plate is called a

A

Anode

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5
Q

EMF is produced by

A

Chemical
Heat
Pressure
Light
Magnetism
Electrostatics

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6
Q

Producing an EMF by adding heat is commonly done by heating the junction of two dissimilar metals. This process is called

A

Seebeck Effect

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7
Q

Producing electricity from pressure or force is

A

Piezoelectricity

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8
Q

Piezoelectricity means

A

Push electricity

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9
Q

Light is

A

Electromagnetic radiation

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10
Q

Most common solar cell

A

Photovoltaic cell

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11
Q

Potential energy is

A

Based on position

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12
Q

Magnetic lines are called

A

Magnetic flux

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13
Q

Magnetic fields go from

A

North to south

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14
Q

The action of a conductor passing through magnetic field, the magnetic flux affects it

A

Electromagnetic induction

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15
Q

Faradays law of induction states that the voltage induced in a conductor by

A

The rate at which you cut the lines of flux is proportional to the rate which the conductor cuts lines

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16
Q

Electrostatics is a form of

A

Electrical charge at rest

17
Q

Magnetism is a measurable characteristics of

A

A moving electrical charge

18
Q

When all atoms align in a magnetic magnet

A

Magnetic domain

19
Q

Temporary magnet is

A

Force applied to magnet magnetizing the material

20
Q

Permanent magnets are

A

Everlasting

21
Q

Permeability is how well

A

A material can concentrate magnetic flux

22
Q

Reluctance is

A

Resistance to the electrical circuit

23
Q

Residual magnetism is

A

How long magnetism remains in material

24
Q

Magnetic saturation is when

A

They cannot absorb any more magnetism

25
Q

Retentivity is the ability of a material to retain

A

Magnetic qualities

26
Q

You can determine the direction of the magnetic field by using the

A

Left hand method

27
Q

Electromagnetism is the interaction of the forces that

A

Electrical fields and magnetic fields create

28
Q

Inductance opposes

A

Change in current

29
Q

Symbol for inductance is

A

L

30
Q

Self induction is the result of

A

Current flowing through a coil creating magnetic fields around each wire in the coil

31
Q

Mutual induction occurs when a change of

A

Current in on circuit causes an induced voltage in another circuit

32
Q

Example of mutual induction is

A

Transformer

Electrical Final (8 decks)

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