Calculating with electric charge: including complex calculations

12 questions

1. Match each of the following quantities to their correct definitions.
2. Match each of the following quantities to the correct measurement units.
3. ___ is the amount of energy transferred per second.
4. A metal is made of ions and free electrons. What is the charge on the ions?
5. In circuits A and B, all of the cells are identical and all of the lamps are identical. Which of the following statements are correct?
6. A mains appliance has a current of 3.50 A through it. The power of the appliance is ___ W (to 3 sf).
7. An ammeter shows a steady reading of 1 A. Which of the following statements describes what this means?
8. Match the following symbols for quantities to the symbols used for their units.
9. How much charge flows through a motor in 5.0 s if there is a constant current of 2.0 A?
10. 66 J of energy is transferred to a lamp when 5.5 C of charge flows through it. The potential difference across the lamp is ___ V.
11. The potential difference across a television is 230 V and a steady current of 0.39 A flows through it. How much energy does the television transfer every second?
12. An electric fan has resistance 5.2 Ω. When a current of 2.3 A flows through the heater, the energy transferred in one minute is …

License: OGL