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JEE Main 2024 (5 Apr, Shift 2) · Electrical Power & Heating Effect

Electrical Power & Heating Effect question from JEE Main 2024 (5 Apr, Shift 2)

Q13JEE Main 2024 · 5 APR · SHIFT 2Medium

Electrical Power & Heating Effect

The ratio of heat dissipated per second through the resistance 5 Ω5\ \Omega and 10 Ω10\ \Omega in the circuit given below is:

Figure

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Answer: (b)

  1. 5 Ω5\ \Omega and 10 Ω10\ \Omega are in parallel, so they have the same voltage.
  2. H=V2R⇒H5H10=105=2H = \dfrac{V^2}{R} \Rightarrow \dfrac{H_5}{H_{10}} = \dfrac{10}{5} = 2.
  3. So the answer is (b) 2 : 1.
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