Six equal resistances are connected between points P, Q and R as shown in the figure. The net resistance will be maximum between:
Answer & explanation
Correct answer: option 1
The correct answer is Option (1) → P and Q
Total resistance between P and Q = r
Total resistance between Q and R = $\frac{r}{2}$ $\left[\frac{1}{r_{eq}}=\frac{1}{r}+\frac{1}{r}\right]$
Total resistance between P and R = $\frac{r}{3}$ $\left[\frac{1}{r_{eq}}=\frac{1}{r}+\frac{1}{r}+\frac{1}{r}\right]$