How does an LDR’s resistance change as the light intensity falling on it increases?
Its resistance decreases.
AQA GCSE Combined Science: Trilogy (8464) — Physics — Foundation · 6.2.1.4
Revise AQA GCSE Combined Science: Trilogy (8464) — Physics — Foundation specification point 6.2.1.4, Resistors, with free active-recall flashcards. Flip through the set or review every question and answer below.
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How does an LDR’s resistance change as the light intensity falling on it increases?
Its resistance decreases.
At a fixed potential difference across an LDR, what happens to the current if its resistance decreases?
The current increases.
What is the circuit symbol for an LDR?
A resistor with arrows pointing towards it to represent incident light, commonly enclosed in a circle.