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Asked by vidyavikram10 7th April 2020, 5:44 AM
Answered by Expert
Answer:
Given circle with diameter segment AB is equivalent of three resistances connected in parallel as shown in figure.
 
Equivalent resistance Req is calculated as follows

begin mathsize 14px style R subscript e q end subscript space equals space fraction numerator open parentheses pi over 2 D cross times pi over 2 D cross times D close parentheses space over denominator open parentheses pi over 2 D cross times D close parentheses space plus open parentheses pi over 2 D cross times D close parentheses space plus open parentheses pi over 2 D cross times pi over 2 D close parentheses end fraction cross times 10 to the power of negative 3 end exponent space capital omega space equals space 0.44 space cross times D space cross times 10 to the power of negative 3 end exponent space capital omega end style

if D = 2 m, then Req = 8.8 × 10-4 Ω
Answered by Expert 7th April 2020, 9:15 AM
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