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14 cards from this deck
R=VIR = \frac{V}{I}R=IV
Directly proportional
Systematic error; reading when true value is zero
Subtract it from all readings
Resistance increases
Use low P.D. to keep current low
Only when taking a reading
Relationship between current & voltage in component
Straight line
Ohm's law is obeyed
Current flows one direction only; curve shape
Curve; resistance increases as temperature rises
Straight-line graph (constant resistance)
Change wire length, measure resistance each time
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