Physics · 2024
JEE Main · 8 April 2024, Shift 2 · Q41
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 ____…
Water boils in an electric kettle in $\displaystyle 20$ minutes after being switched on. Using the same main supply, the length of the heating element should be $\displaystyle \_\_\_\_$ to $\displaystyle \_\_\_\_$ times of its initial length if the water is to be boiled in $\displaystyle 15$ minutes.
Official answer
From NTA’s final answer key for this paper.
(2)
decreased, $\displaystyle 3 / 4$
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JEE Main 2024 Physics question, with the answer from NTA’s final answer key. Where our answers come from.