The figure shows a meter bridge in which null point is obtained at a length \( \mathrm{AD}=l \). When a resistance \( \mathrm{S}^{\prime} \) is connected in parallel with resistance \( S \) the new position of null point is obtained
(a) to the left of \( D \)
(b) to the right of \( D \)
(c) at the same point \( \mathrm{D} \)
(d) to the left of \( \mathrm{D} \) if \( \mathrm{S}^{\prime} \) has lesser value than \( \mathrm{S} \) and to the right of \( \mathrm{D} \) if \( \mathrm{S}^{\prime} \) has more value than \( \mathrm{S} \).
\( \mathrm{P} \)
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