Question

List four factors on which the resistance of a conductor depends. The resistivities of some substances are given below:

Materials

A

B

с

D

E

Resistivity (2m)

1.6 x 10

6.4 x 10

10 x 10

96 x 10

100 x 10

Answer the following questions in relation to them giving justification for each: Which material is best for making connecting

cords ? to Which material do you suggest to be used in heating devices ?

(i) You have two wires of same length and me thickness. One is made of material A and another material D. If the resistance of wire made of A 20, what is the resistance of the other wire​

Answer 1

Answer:

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Explanation:

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