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Asked by vidyavikram10 | 07 Apr, 2020, 05:44: AM
answered-by-expert 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 Thiyagarajan K | 07 Apr, 2020, 09:15: AM

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