JEE · NEET Previous Year Question
Water boils in an electric kettle in 20 minutes after being switched on. Using the same main supply, the length of the heating element should be_____to ____times of its initial length if the water is to be boiled in 15 minutes.
Topic: JEE PYQ
Answer: A. Full step-by-step solution below.
- Adecreased, 3/4
- Bincreased, 4/3
- Cdecreased, 4/3
- Dincreased, 3/4
Correct answer: A
Solution
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