Physics · 2024
JEE Main · 8 April 2024, Shift 2 · Q56
A heater is designed to operate with a power of 1000 W in a 100 V line. It is connected in combination with a resistance of 10 Ω and a resistance R,…
A heater is designed to operate with a power of $\displaystyle 1000$ W in a $\displaystyle 100$ V line. It is connected in combination with a resistance of $\displaystyle 10 \Omega$ and a resistance R , to a $\displaystyle 100$ V mains as shown in figure. For the heater to operate at $\displaystyle 62.5$ W, the value of R should be $\displaystyle \_\_\_\_$ $\displaystyle \Omega$
Official answer
From NTA’s final answer key for this paper.
5
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JEE Main 2024 Physics question, with the answer from NTA’s final answer key. Where our answers come from.