Components in Series & Parallel Circuits Quiz
Studying this course? Keep your progress in one place.
Pick an answer for each. Quizzes never use energy.
5 questions, one answer each
Each answer is checked as you go, with why.
See all 5 questions
1. How must an ammeter be connected to correctly measure the current through a resistor?
- A. In parallel with the resistor
- B. In series with the resistor
- C. Directly across the battery only
- D. It does not matter how it is connected
2. Which statement correctly describes a fixed resistor at constant temperature?
- A. Current is directly proportional to potential difference
- B. Resistance increases as current increases
- C. Current is constant regardless of potential difference
- D. Resistance decreases as potential difference increases
3. A student increases the current through a filament lamp. What happens to its resistance?
- A. It decreases as the filament cools
- B. It stays exactly constant
- C. It increases as the filament heats up
- D. It becomes negative
4. A thermistor (negative temperature coefficient) is placed in warm water instead of cold water, with the same potential difference applied. What happens to the current?
- A. It decreases, because resistance increases with temperature
- B. It increases, because resistance decreases with temperature
- C. It stays exactly the same
- D. It becomes zero
5. An LDR is used in a light-sensing circuit. In bright daylight, how does its resistance compare with resistance at night, and what does this mean for current at a fixed p.d.?
- A. Resistance is higher in daylight, so current is lower
- B. Resistance is lower in daylight, so current is higher
- C. Resistance is unaffected by light intensity
- D. Resistance and current are both zero regardless of light