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More cards in this set
Card 6
Front
The pd across a metallic conductor is proportional to the current, provided the conditions do not change.
Back
Card 7
Front
The resistance of a metal increases when its temperature is increased.
Back
Card 8
Front
Work done or energy transfer per unit charge between two points when charge moves from one point to the other.
Back
Card 9
Front
Two or more resistors in series connected to a source of pd.
Back
Card 10
Front
Rate of energy transfer.
Back
Card 11
Front
Pd / current
Back
Card 12
Front
Resistance per unit length x area of cross-section.
Back
Card 13
Front
The value of direct current that would give the same heating effect as the alternating current in the same resistor (or pd).
Back
Card 14
Front
A substance in which the number of charge carriers increases when the temperature is raised.
Back
Card 15
Front
A material that has zero electrical resistance, below a ‘critical’ temperature.
Back
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