ABCD is a square where each side is uniform wire of resistance 1 Ohm. Find a point E on CD such that if a uniform wire of resistance 1 Ohm is connected across AE and a potential diffrence is applied across A and C, the points B and E will be equipotential.
Let potential across A and C be V
Let length of the side of the square = a
Let BE has a resistance x
Let origin be at D.
AB and BE resistance are in series while AE are in parallel to them thus equivalent resistance between point A and E will be: