# electricity

?
measured in coulombs
charge
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rate of flow of charge in a circuit
current
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work done per unit charge
potential difference
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used to measure P.D. with an infinite resistance
voltmeter
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instrument should be placed ......... with a component
parallel
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how difficult it is to pass current through
resistance
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a measuring instrument with no resistance
ammeter
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ohm's law is dependent on
temperature
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what kind of graph does a ohmic conducted have?
straight line
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what kind of graph does a filament lamp have?
curve
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only lets current flow in one direction?
diode
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if a diode reads 0.6v this is also known as the
threshold voltage
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a measure of the resisting power of a specified material to the flow of current
resistivity
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has zero resistivity
superconductors
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the rate of transfer of energy measured in watts
power
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easy to calculate of you know the power
energy
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EMF stands for?
electromotive force
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current can neither be created nor destroyed
kirchhoff's first law
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if you go all the way around the circuit the total change in P.D. =0
second law
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as long as physical conditions remain constant current is ............ to P.D.
directly proportional
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diodes are
forward bias
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the three things that determine resistance
length area resistivity
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pie r ^2 is
area of a circle
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charge doesn't leak away, it is
conserved
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L.D.R is
light dependent resistor
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if the light intensity increases the resistance
decreases
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current that flows in both directions
alternate
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## Other cards in this set

### Card 2

#### Front

rate of flow of charge in a circuit

current

### Card 3

#### Front

work done per unit charge

### Card 4

#### Front

used to measure P.D. with an infinite resistance

### Card 5

#### Front

instrument should be placed ......... with a component