Measuring the resistance of a filament lamp

12 questions

1. What is the correct name for the electrical device shown?
2. Why is the filament glowing?
3. Which of the following statements about filament bulbs is incorrect?
4. Which of the following statements are correct?
5. Which of the following components is represented by the circuit symbol shown?
6. Which of the following equations shows the correct relationship between potential difference, V, current, I and resistance, R?
7. Match each of the following components to their function in a circuit with a cell and filament lamp.
8. What mistake has been made in the circuit shown in the diagram below?
9. What is 5 milliamps (mA) when converted to amps (A)?
10. A current of 0.6 A flows through a filament lamp when a p.d. of 3.0 V is applied across it. What is the resistance of the lamp in ohms (Ω)?
11. What should the line of best fit look like on the graph shown?
12. Which of the following statements are correct when a filament lamp becomes brighter?

License: OGL