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RadPhy > Electromagnetism > Flashcards

Electromagnetism Flashcards

1
Q

One of the four fundamental interaction in nature

A

Electromagnetism / Electromagnetic force

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2
Q

Statis distribution of charges produce

A

Electric field

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3
Q

Changes in motion (electrical current) produce

A

Magnetic field

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4
Q

Electrons in motion

A

Electric current

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5
Q

Showed that electricity and magnetism were related

A

Hans christian Oersted

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6
Q

Magnet is equal to a coil of wire carrying a current

A

Andre Marie Ampere

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7
Q

A coil of wire carrying a current

A

Solenoid

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8
Q

Alignment of the molecules with an external magnetic field

A

Magnetization

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9
Q

Molecule of permanent magnet has

A

Close current loop

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10
Q

Built the first electric motor and first transformer and generator

A

Michael Faraday

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11
Q

The force initiated by electric charges or magnetism as a disturbance in space

A

Field

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12
Q

Magnitude of induced current

A

Strength
Velocity
Angle of conductor
Number of turns

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13
Q

Change mechanical to electrical energy

A

Generator

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14
Q

Converts electrical enery to motion

A

Electric motor

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15
Q

Ferromagnetic properties of an iron core to efficiently raise or lower AC voltages

A

Transformer

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16
Q

Induced current in the coil produces a magnetic field to oppose the change in magnetic field which produced it

A

Lenz law

17
Q

Proposed changing magnetic field can make an electric field and vice versa

A

James Clark Maxwell

18
Q

Generated in the space around a current flowing

A

Magnetix flux

19
Q

Flux came from a latin word _______ and _______ means to flow

A

“Fluxus”

“Fluere”

20
Q

SI unit for magnetic flux

A

Weber (Wb) - volts second

21
Q

Arranging wire in a coil and running current produce field that is a bar magnet

A

Electromagnet

22
Q

Shove the magnet back and forth depending on diretion

A

Solenoid

23
Q

Current carrying coil pf wire that intensifies the magnetic field

A

Electromagnet

24
Q

Electromagnet can be strong by

A

Wrapping the coil around iron core
Adding turns
Increase current flow

RadPhy (9 decks)

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