Q.
Six equal resistances are connected between point s $P,Q$ and $R$ as shown in the figure. Then the net resistance will be maximum between
A) $P\ $and $Q$
B) $Q$ and $R$
C) $P$ and $R$
D) Any two points
Explanation
(a) The circuit given in figure can be redrawn as shown here. Here two resistances are joined in series and the combination is joined in parallel with the third resistance. Since in parallel grouping effective resistance is even less than the smallest individual resistance, hence net resistance will be maximum between the points $P$ and $Q$
[image:3_image137.emf]
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.