The water in an electric kettle begins to boil in 15 minutes after being switched on. If…
Physics · NEET · NTA Exams — Current Electricity
The water in an electric kettle begins to boil in 15 minutes after being switched on. If the water is required to be boiled in 10 minutes, by how much the length of wire of heating element be changed?
- increased by 50%
- decreased by 50%
- increased by 33%
- decreased by 33%
Answer
(D) decreased by 33%
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