JEE Mains · Physics · STD 12 - 3. current electricity
The figure shows three circuits \(I, II\) and \(III\) which are connected to a \(3\,V\) battery. If the powers dissipated by the configurations \(I, II\) and \(III\) are \(P_1 , P_2\) and \(P_3\) respectively, then
- A \(P_1 > P_2 > P_3\)
- B \(P_1 > P_3 > P_2\)
- C \(P_2 > P_1 > P_3\)
- D \(P_3 > P_2 > P_1\)
Answer & Solution
Correct Answer
(C) \(P_2 > P_1 > P_3\)
Step-by-step Solution
Detailed explanation
From the given circuit, net resistances \({{\rm{R}}_I} = 1\,\Omega ,{{\rm{R}}_{{\rm{II}}}} = 1/2\,\Omega ,{{\rm{R}}_{{\rm{III}}}} = 3/2\,\Omega \) It is clear that \(\mathrm{R}_{3}>\mathrm{R}_{1}>\mathrm{R}_{2}\) Hence, \({P_3} < {P_1} < {P_2}\) As Power \((P)\)…
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