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ICSE Class 10 Answered

A wire of 6 ohm resistance is cut into 3parts and connected in parallel what is net resistance 
Asked by bharadwajlucky26 | 14 Sep, 2018, 04:17: PM
answered-by-expert Expert Answer
When three resistances R1, R2 and R3 are in parallel, the equivalent resistance is begin mathsize 12px style fraction numerator R 1 cross times R 2 cross times R 3 over denominator R 1 cross times R 2 space plus space R 2 cross times R 3 space plus space R 3 cross times R 1 end fraction end style
when wilre of 6Ω is cut into equal parts, each part will have resistance 2Ω .
 
Hence equivalent resistance when all three 2Ω resistances are connected in parallel is  (2×2×2)/(4+4+4) = (2/3)Ω
Answered by Thiyagarajan K | 14 Sep, 2018, 04:54: PM

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