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Two copper wire A and B having identical mass . The length of B is half that of A . Find the ratio of resistance of B and A

Posted by Anurag Tiwari 4 years, 11 months ago

CBSE > Class 10 > Science

4 answers

Jaya Dixit 4 years, 8 months ago

The answer is 1/4 Here, It is given that the mass of both the wire is same and the length of B =1/2A or A=2B. Here if the mass is same then the length should also be equal but the length is not equal and so as to satisfy the given part the areaB=twice area A And we put the values in the formula of resistivity we find the ratio to be 1:4

0Thank You

Rithika Gautam 4 years, 11 months ago

Resistance will be half

0Thank You

Harsh Janghu 4 years, 11 months ago

R = 1/2

0Thank You

Harsh Janghu 4 years, 11 months ago

Resistance will be half

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CBSE > Class 10 > Science