Two circular rings of identical radii and resistance 36 Ω Ω are placed as shown in the figure. Conducting joints are made at points A and B and a cell of emf 20 V is connected between these two points. What is the power (in W) delivered by the cell? [C 1 and C 2 are the centers of the two rings]
Text Solution
Verified by ExpertsThe correct answer is:
CHECK THE SOLUTION.
(100)
From the figure.
AC 1 = AC 2 = C 1 C 2 = radius
In between A and B, 4 resistances are in parallel
Hence the resistance of four sections are in parallel
Hence equivalent resistance R across AB is
∴ Power 
watt
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