In a potential divider, an LDR is in series with a fixed resistor; the output is taken across the LDR. When it gets darker, the output:

  1. decreases
  2. stays the same
  3. becomes zero
  4. increases
Answer

D) increases

LDR resistance rises, so it takes a larger share of the p.d. SLO P-09-E-25 · Understanding

Physics MCQ · More Current Electricity MCQs · Practise