The test specimen explained in Question 1(e) maintains the same mechanical properties even after the rod is broken down from 8 mm to a 2 mm diameter copper cable. Answer the following concerning a 2 mm diameter copper cable with a length of 10 m to be used in domestic wiring under a voltage of 220V: (i) Explain what is meant by the rexistivity of the copper cable. What influences this resistivity ? Determine the resistivity of the 2 mm copper cable mentioned above when a current of 15 amps is used. (ii) (ii) Determine the electrical conductivity of the copper cable.
The test specimen explained in Question 1(e) maintains the same mechanical properties even after the rod is broken down from 8 mm to a 2 mm diameter copper cable. Answer the following concerning a 2 mm diameter copper cable with a length of 10 m to be used in domestic wiring under a voltage of 220V: (i) Explain what is meant by the rexistivity of the copper cable. What influences this resistivity ? Determine the resistivity of the 2 mm copper cable mentioned above when a current of 15 amps is used. (ii) (ii) Determine the electrical conductivity of the copper cable.
Elements Of Electromagnetics
7th Edition
ISBN:9780190698614
Author:Sadiku, Matthew N. O.
Publisher:Sadiku, Matthew N. O.
ChapterMA: Math Assessment
Section: Chapter Questions
Problem 1.1MA
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Transcribed Image Text:QUESTION TWO
The test specimen explained in Question 1(c) maintains the same mechanical properties evEn
after the rod is broken down from 8 mm to a 2 mm diameter copper cable. Answer the following
concerning a 2 mm diameter copper cable with a length of 10 m to be used in domestic wiring
under a voltage of 220V:
Explain what is meant by the resistivity of the copper cable. What influences this
resistivity ?
(i)
(ii)
Determine the resistivity of the 2 mm copper cable mentioned above when a current
of 15 amps is used.
(ii1)
Determine the electrical conductivity of the copper cable.
(iv)
Using neat sketches where possible, discuss how the p-n junction of a semi-conductor
is formed.
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