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The resistivity’s of some substances are …

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The resistivity’s of some substances are given below : Material A B C D E Resistivity (  m) 8 1 6 10   8 6 4 10   8 10 10  8 96 10  6 100 10  Answer the following questions in relation to them giving justification for each: i) Which material is best for making connecting cords? ii) Which material do you suggest to be used in beater elements? iii) You have two wires of same length and same thickness. One is made of material A and another of material D. If the resistance of wire of A is 2  , what is the resistance of the other wire?

Posted by Dontham Harshith Reddy 5 years, 3 months ago

CBSE > Class 10 > Science

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