An electric kettle is plugged into the 230 V mains - Edexcel - GCSE Physics - Question 5 - 2016 - Paper 1
Question 5
An electric kettle is plugged into the 230 V mains.
The current in the heating element of the kettle is 11 A.
Calculate the power supplied to the kettle.
An electr... show full transcript
Worked Solution & Example Answer:An electric kettle is plugged into the 230 V mains - Edexcel - GCSE Physics - Question 5 - 2016 - Paper 1
Step 1
Calculate the power supplied to the kettle.
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Answer
To find the power supplied to the kettle, we can use the formula:
extPower=extVoltageimesextCurrent
Given:
Voltage = 230 V
Current = 11 A
Substituting the given values:
extPower=230imes11=2530W
Thus, the power supplied to the kettle is 2500 W.
Step 2
Complete the sentence by putting a cross (×) in the box next to your answer.
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Answer
Energy is stored in the battery as
✅ C chemical energy
Step 3
State the name of this part of the battery charger.
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Answer
The name of this part of the battery charger is a transformer.
