motor.
13. i) Observe the following table. Which of the material can be used for
transmission of electricity, heating material and
insulator, and why?
Material Resistivity (m)
А
1.62 x 10-8
B
100 x 10-6
С
1 x 1010
ii) How does the resistance of a conductor vary with its length?
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Answer:
A can be used to transmit electricity as it has less resistance. resistance is inversely proportional to electron flow. so lesser the resistance , more the amount to electric flow. C is an insulator as it has high resistance and resist the flow of electrons
Explanation:
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