The starter and exit quiz of the lesson “Mains electricity”, from the unit “Resistance and parallel circuits” (Year 9 Science) by Oak National Academy.
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Oak National Academy
12 questions
Which of the following types of circuit is used for car headlamps so that if one light stops working, the other stays lit?
Which of the following statements is correct?
Which of the following statements about a circuit where a high current flows through a bulb and the voltage and current are correctly measured is correct?
In the circuit shown, what is the voltage across the electric cell if the voltage across the 8 \Omega resistor is 2.0 V and the voltage across the 4 \Omega resistor is 2.0 V?
In the circuit shown, what will the ammeter read if the current in the resistor is 0.35 A and the current in the lamp is 0.25 A?
Where does our household electricity come from?
Which of the following is the unit of power?
Which of the following devices or appliances has the greatest power rating?
How many watts are there in a kilowatt?
Which of the following values is equal to 0.1 kilowatts?
How many watts are there in a gigawatt?
What is the cost of using a 1000 W heater for 30 min, if 1 kWh costs £0.30?
