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JEE Mains · Physics · STD 12 - 3. current electricity
Which of the four resistances \(P, Q, R\) and \(S\) generate the greatest amount of heat when a current flows from \(A\) to \(B\) ?
- A \(Q\)
- B \(S\)
- C \(P\)
- D \(R\)
Answer & Solution
Correct Answer
(B) \(S\)
Step-by-step Solution
Detailed explanation
\(\mathrm{R}_{1}=\mathrm{P}+\mathrm{Q}=2\, \Omega+4 \,\Omega=6\, \Omega\) \(\mathrm{R}_{2}=\mathrm{R}+\mathrm{S}=1 \,\Omega+2 \,\Omega=3 \,\Omega\) \(\mathrm{I}_{1} \mathrm{R}_{1}=\mathrm{I}_{2} \mathrm{R}_{2}\)…
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