Question

36
producing organs in the flower.
List three factors on which the resistance of a conductor depends. The resistivities
of some substances are given below:
B
6.4X10-8
с
10x10-8
D
96X10-8
E
100X10-8
Materials А
Resistivity 1.6X10-8
(Nm)
Answer the following questions in relation to them giving justification of each:
(a) Which material is best for making connecting cords?
(b) Which material do you suggest to be used in heating devices?
(c) 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 made of A is 202,
what is the resistance of the other wire?​

Answer 1

Answer:

4×10_8

Explanation:

10 multiplied by 4 =40 and 40_8= 32