two cubes A and B are of the same material the side of B is the thrice as that of A . find the ratio Ra/Rb
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two cubes A and B are of the same material the side of B is the thrice as that of A . find the ratio Ra/Rb
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Given :
Two cubes A and B are of the same material the side of B is the thrice as that of A .
Therefore , .
To Find :
The ratio Ra/Rb .
Solution :
We know , resistance is given by :
So ,
Therefore ,
Putting , , we get :
Therefore , .
Learn More :
Resistance
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