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A piece of wire having a resistance R is cut into five equal parts. (i) How will the resistance of each part of the wire compare with the original resistance? (ii) If the five parts of the wire are placed in parallel, how will the resistance of the combination compare with the resistance of the original wire? What will be ratio ofresistance in series to that of parallel?

Posted by Nandini Verma 4 years, 4 months ago

CBSE > Class 10 > Science

2 answers

Yogita Gupta 4 years, 4 months ago

2) R(p) = 25/R

1Thank You

Yogita Gupta 4 years, 4 months ago

R = rho l/a R' = rho l/5a R' = R/5

1Thank You

ANSWER

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CBSE > Class 10 > Science