ELECTROMAGNETISM Flashcards

1
Q

importance of electricity

A

supplied to the xray imaging

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2
Q

basic property of matter

A

electric charge

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3
Q

like charges?

A

repel

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4
Q

unlike charges ?

A

attract

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5
Q

coulomb named after?

A

charles agustine coulomb

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6
Q

directly proportional

A

coulomb’s law

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7
Q

Fe:

A

electric for

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8
Q

k:

A

coulomb constant

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9
Q

r:

A

distance between charges

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10
Q

force acts at a distance

A

electrostatic force

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11
Q

radially outward:

A

positive charge

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12
Q

radially inward:

A

negative charge

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13
Q

methods of charging: rub against each other

A

friction

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14
Q

methods of charging:already in contact

A

conduction

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15
Q

methods of charging:brought near but not touched

A

induction

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16
Q

electric states of matter: used in machines for nuclear manetic resonance

A

superconductor

17
Q

electric states of matter:does not conduct electrical current

A

insulator

18
Q

electromotive force:

A

voltage

19
Q

volt was named after?

A

alessandro volta

20
Q

ampere named after?

A

andre marie ampere

21
Q

opposition to the flow of electric current

A

electric resistance

22
Q

amount of energy thru a metal conductor

A

ohm’s law

23
Q

measure of energy per unit time

A

electric power

24
Q

amount of electrical energy transferred

A

electric energy

25
Q

fundamental property of some forms of matter

A

magnetism

26
Q

vector field

A

magnetic field

27
Q

types of magnet: lodestone

A

natural

28
Q

types of magnet: made of iron

A

permanent

29
Q

types of magnet: wire wrapped around an iron core

A

electromagnets

30
Q

types of magnet: unaffected by magnetic

A

nonmagnetic

31
Q

types of magnet: weakly repels

A

diamagnetic

32
Q

types of magnet: slightly attracted to a magnet

A

paramagnetic

33
Q

types of magnet: strongly attracted to magnets

A

ferromagnets

34
Q

a process where a magnetic field is created

A

electromagnetism

35
Q

interaction occurs between electrically charge particle

A

EMF

36
Q

coil wire called?

A

solenoid