Resistors (AQA GCSE Physics Combined Science): Quizzes
📚Quizzes
Practise the questions
12 questions from this quiz
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Practise the questions
12 questions from this quiz
What type of graph shows the relationship between current and P.D. for an ohmic conductor?
What type of graph shows the relationship between current and P.D. for an ohmic conductor?
Linear
What happens to the resistance of a filament lamp as its temperature increases?
What happens to the resistance of a filament lamp as its temperature increases?
Resistance increases
In which direction does current flow through a diode?
In which direction does current flow through a diode?
One direction only
What happens to energy transfer as resistance increases?
What happens to energy transfer as resistance increases?
More energy is transferred
How does a thermistor's resistance change in hotter temperatures?
How does a thermistor's resistance change in hotter temperatures?
Resistance is lower
What happens to an LDR's resistance when light intensity increases?
What happens to an LDR's resistance when light intensity increases?
Resistance is lower
What is a key advantage of LEDs as a light source?
What is a key advantage of LEDs as a light source?
Extremely energy-efficient
Why does resistance increase when current increases in a resistor?
Why does resistance increase when current increases in a resistor?
Electrons collide more with atoms
Which components have resistance that is not constant?
Which components have resistance that is not constant?
Lamps, diodes, thermistors, LDRs
How does increasing the length of a wire affect its resistance?
How does increasing the length of a wire affect its resistance?
Greater length, more resistance
What resistance does a diode have in the reverse direction?
What resistance does a diode have in the reverse direction?
Very high resistance
What type of graph does a filament lamp produce for current vs P.D.?
What type of graph does a filament lamp produce for current vs P.D.?
Non-linear