1. Which of the following does not affect the resistance of a wire? a) Length b) Temperature c) Usage time d) Cross-sectional area

2. If a 12V battery is passing current through a resistor with a current of 2A, what is the value of the resistor? a 24resistance b) 14resistance c) 10resistance d) 6resistance

3. Describe the differences between series and parallel circuits.

4. A circuit contains resistors of 8resistance and 4resistancewhat is combined resistance if the resistors are combined: a) In series b) In parallel

5. A 0.5A current is passing across three resistors of 8resistance, 4resistance and 12resistance that are linked in series. What is the potential difference of the circuit?

6. Wire A has a resistance of 24resistance. If wire B is double the length and has a diameter four times as large as wire A, what is the resistance of wire B?

7. If a resistor has a steady resistance of 20, and a current of 0.2.A, what is the p.d. across it? a) 0.2V b) 4V c) 100V d) 0.01V

8. A 6V potential difference is produced by a battery and passes through two light bulbs. If a voltmeter reading is 2V across the first lightbulb, then what will be the voltmeter reading at the second lightbulb? a) 8V b) 6V c) 4V d) 3V

9. Outline 3 factors affecting the resistance of a conductor.

10. Describe Ohm's law.

11. Describe how two different variable resistors work.

12. The potential difference of a circuit is 6V, if a lightbulb is connected to this circuit alongside a resistor of 10resistance. If the resistor is later replaced with a 25 resistance resistor, what is the change in current for the lightbulb?