Resistors (OCR GCSE Physics A, Combined (Gateway Science Suite)): 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 is produced for an ohmic conductor?
What type of graph is produced for an ohmic conductor?
Linear
Which component has resistance that is NOT constant?
Which component has resistance that is NOT constant?
Filament lamp
What happens to a filament lamp's resistance as it gets hot?
What happens to a filament lamp's resistance as it gets hot?
Increases
Why does resistance increase when electrons flow through a resistor?
Why does resistance increase when electrons flow through a resistor?
Electrons collide with atoms
In which direction does current flow through a diode?
In which direction does current flow through a diode?
One direction only
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
How does a thermistor's resistance change in hotter temperatures?
How does a thermistor's resistance change in hotter temperatures?
Decreases
When is the resistance of an LDR greatest?
When is the resistance of an LDR greatest?
In the dark
How does wire length affect resistance?
How does wire length affect resistance?
Greater length = more resistance
What happens when resistance is higher?
What happens when resistance is higher?
More energy is transferred
For an ohmic conductor, when does resistance stay constant?
For an ohmic conductor, when does resistance stay constant?
When temperature is constant
What is the resistance of a diode in the reverse direction?
What is the resistance of a diode in the reverse direction?
Very high