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Physics > Electric circuits > Flashcards

Electric circuits Flashcards

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1
Q

What is the unit of potential difference?

A

Volts (V)

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2
Q

What is the unit of current?

A

Amps (A)

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3
Q

What is the unit of resistance?

A

Ohm (Ω)

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4
Q

What is the unit of charge?

A

Coulomb (C)

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5
Q

What is the unit of power?

A

Watt (W)

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6
Q

What is the unit of time?

A

Second (s)

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7
Q

What is the unit of energy and work done?

A

Joules (J)

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8
Q

What is the name for a circuit with only one branch?

A

Series circuit

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9
Q

What is the name for a circuit with two or more branches?

A

Parallel circuit

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10
Q

what is the symbol for a bulb?

A

circle with a cross

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11
Q

what is the symbol for a resistor?

A

rectangle

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12
Q

what is the symbol for a cell?

A

–I I–

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13
Q

what is the symbol for a battery?

A

-I I–I I-

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14
Q

what is a symbol for a diode?

A

horizontal line, sideways triangle, vertical line, horizontal line

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15
Q

what is the symbol for a variable resistor?

A

rectangle with a diagonal line through going to the top right

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16
Q

what is the symbol for a fuse?

A

rectangle with horizontal line through

17
Q

what is the symbol for an ammeter?

A

circle with an A in it

18
Q

what is the symbol for a voltmeter?

A

circle with a V in it

19
Q

what is symbol for a light dependent resistor (LDR)?

A

circle with a rectangle in it and two arrows pointing to the top right corner

20
Q

what is the symbol for a thermistor?

A

rectangle with hockey stick

21
Q

what component does a graph with a line that looks like an ‘S’ show?

A

filament bulb

22
Q

what component does a graph with a straight line through zero show?

A

fixed resistor

23
Q

what component does a graph that stays level then goes up show?

A

diode

24
Q

write the equation which links current, time and charge

A

charge= current x time

25
Q

write the equation which links current, potential difference and resistance

A

potential difference= current x resistance

26
Q

write the equation which links potential difference, work done and charge

A

potential difference= work done /charge

Physics (2 decks)

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