1.

Four wires AB, BC, CD, DA of resistance 4 ohm each and a fifth wire BD of resistance 8 ohm are joined to form a rectangle ABCD of which BD is a diagonal. The effective resistance between the points A and B is              [MP PMT 1994]

A.            24 ohm
B.                                      16 ohm
C.                    \[\frac{4}{3}ohm\]     
D.            \[\frac{8}{3}ohm\]
Answer» E.


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