MJ21 P12 Q33 Kettle Power and Potential Difference | May/June 2021 | Cambridge A Level Physics
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- Опубликовано: 18 сен 2024
- 9702/12/M/J/21: The power output of an electrical supply is 2.4kW at a potential difference (p.d.) of 240V. The two wires between the supply and a kettle each have a resistance of 0.50Ω, as shown. What is the power supplied to the kettle and what is the p.d. across the kettle?
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Omg thank you I thought resistors were in parallel this makes sense
i did the same....🤣🤣
You are making a great contribution
U r a superb teacher. Keep up the good work....
when u redrew it as a circuit how would us know if it was in parallel
Thank you so much
Life saver
The resistors look like they are in parallel though without making the circuit diagram, thats how i was getting the wrong answer
why did not use p=I2R
If you have enough info, you can use that too!