UK GCSE · Physics
Electricity and Circuits
12 practice questions, each with the answer and an explanation.
Practise Electricity and Circuits now
Random questions from this topic, one at a time. You see the answer and the explanation straight after each one.
All 12 questions
- What is the unit of electric current?
- A resistor has a potential difference of 12 V and a current of 3 A. What is its resistance?
- In a series circuit, what is true about the current?
- Two identical lamps are connected in parallel to a 6 V cell. What is the potential difference across each lamp?
- What happens to the resistance of a thermistor as the temperature rises?
- Which wire in a three-pin plug is the earth wire?
- Why is a fuse connected to the live wire?
- Which is the correct unit of power?
- A 2 kW kettle runs for 3 minutes. How much energy does it transfer?
- Which material is a good electrical insulator?
- A 6 ohm resistor and a 3 ohm resistor are connected in parallel. What is their combined resistance?
- An ideal transformer has 1000 turns on the primary coil and 50 turns on the secondary coil. The primary voltage is 230 V. What is the secondary voltage?
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