Question

If we replace resistors between $A$ and $B$ and resistors between $G$ and $H$ by wires of zero resistance, then the points having the same potential are
$i.D,E,C,Fii.A,Biii.G,H$

• A. Only (i) is correct
• B. Only (ii) is correct
• C. Only (iii) is correct
• D. (i), (ii), and (iii) are correct

Answer 1

The correct option is D (i), (ii), and (iii) are correct

If we will see carefully the equivalent circuit, the top and the bottom part of the circuit will represent two balanced Wheatstone bridge. So no current will pass through resistors in between C and D; E and F. Thus, they will be at same potential. As G is symmetrical to H so G and H have same potential. similarly A and B have same potential.