What will be the equivalent resistance between the two points A and D?

Text Solution
Verified by ExpertsThe correct answer is:
A
Lower resistance on extreme left and upper resistance on extreme right are ineffective. The resistance
and
are in series combination. Therefore their equivalent resistance,

Similarly, the resistance
and
are in series combination. Therefore their equivalent resistance,

Now the equivalent resistances
and
are in parallel combination. Therefore their equivalent resistance,

Thus equivalent resistance between
and 
(series combination)
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