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Science (General) > Circuits > Flashcards

Circuits Flashcards

1
Q

circuit elements that impede the flow of current.

A

resistor

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2
Q

represented on circuit diagrams with a zigzag line or rectangle

A

resistor

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3
Q

add linearly when they are connected in series

A

resistor

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4
Q

strength equals voltage over current according to Ohm’s law

A

resistor

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5
Q

connected in a diamond configuration in a Wheatstone bridge

A

resistor

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6
Q

colored bands indicate their strength

A

resistor

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7
Q

a potentiometer is a variable three-terminal variety of these devices

A

resistor

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8
Q

connected to an inductor and capacitor in an oscillating RLC circuit

A

resistor

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9
Q

produce Johnson–Nyquist noise

A

resistor

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10
Q

wye-delta transform

A

resistor

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11
Q

star-mesh transform

A

resistor

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12
Q

a rheostat is an adjustable type of these

A

resistor

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13
Q

strength is the sum of the reciprocals of their strengths in parallel

A

resistor

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14
Q

Norton’s theorem

A

resistor

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15
Q

Thévenin’s theorem

A

resistor

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16
Q

symbol for these devices is a box with an arrow through it

A

rheostat

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17
Q

store charge

A

capacitor

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18
Q

Leyden jars

A

capacitor

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19
Q

connected to an inductor and resistor in an oscillating RLC circuit

A

capacitor

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20
Q

strength is measured in Farads

A

capacitor

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21
Q

“super” type makes use of Helmholtz double layers

A

capacitor

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22
Q

their reactance is inversely proportional to frequency

A

capacitor

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23
Q

shown as two parallel lines in circuit diagrams

24
Q

electrolytic types have a dielectric placed between two parallel plates

25
Q

emf produced by is proportional to the negative time derivative of the magnetic flux

26
Q

consist of a wire wound into a coil

27
Q

impedance in these devices is proportional to frequency

28
Q

chokes block AC but allow DC

29
Q

transformers are composed of two or more around a metal ring

30
Q

connected to a capacitor and resistor in an oscillating RLC circuit

31
Q

used to “step up” or “step down” voltage

A

transformer

32
Q

Eddy currents can lead to energy losses

A

transformer

33
Q

current that follows a sinusoidal pattern

A

alternating current

34
Q

converted into DC by a rectifier

A

alternating current

35
Q

partially developed by Nikola Tesla

A

alternating current

36
Q

distribution system developed by George Westinghouse

A

alternating current

37
Q

current flows in only one direction

A

direct current

38
Q

championed by Thomas Edison

A

direct current

39
Q

ideally have zero resistance in one direction, and infinite resistance in the other

40
Q

Zener type can function beyond the breakdown voltage

41
Q

represented by a triangle whose point connects to a straight line

42
Q

formed from a single p-n junction

43
Q

light-emitting ones

44
Q

developed by William Shockley

A

transistor

45
Q

converts alternating current into direct current

46
Q

converts direct current into alternating current

47
Q

diodes are a type of this device

48
Q

elusive blue ones use gallium nitride (or most do anyway)

A

light-emitting diode

49
Q

classified as n-type (free electrons) or p-type (electron holes)

A

semiconductor

50
Q

impurities added to increase conductivity in a process called doping

A

semiconductor

51
Q

metalloids are often used for these materials

A

semiconductor

52
Q

Schottky barrier

A

semiconductor

53
Q

III-V type contains elements from groups III and V on the periodic table

A

semiconductor

54
Q

includes quantum dots

A

semiconductor

55
Q

Fermi level

A

semiconductor

56
Q

used to measure current

57
Q

used to measure potential difference

Science (General) (11 decks)

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