Resistors (OCR GCSE Physics A, Combined (Gateway Science Suite)): Flashcards
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14 cards from this deck
Ohmic conductor
Ohmic conductor
Constant resistance, current proportional to P.D.
Graph type for ohmic conductor
Graph type for ohmic conductor
Linear
Graph type for non-ohmic components
Graph type for non-ohmic components
Nonlinear
Filament lamp resistance as temperature increases
Filament lamp resistance as temperature increases
Increases
Direction of current flow in a diode
Direction of current flow in a diode
One direction only
Effect of higher resistance on energy transfer
Effect of higher resistance on energy transfer
More energy is transferred
Ohm's Law relationship
Ohm's Law relationship
Current directly proportional to P.D.
Condition for constant resistance
Condition for constant resistance
Temperature must be constant
Why resistance increases with current
Why resistance increases with current
Electrons collide more, atoms vibrate more
Thermistor resistance in hotter temperatures
Thermistor resistance in hotter temperatures
Lower
Effect of greater length on resistance
Effect of greater length on resistance
More resistance, lower current
LDR resistance with greater light intensity
LDR resistance with greater light intensity
Lower resistance
Diode resistance in reverse direction
Diode resistance in reverse direction
Very high resistance
LED efficiency
LED efficiency
Extremely energy-efficient