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Questions and answers by
Anila Hanif
Answers (1)
A=πr² A=π(d/2)² i): For 144- fiber telephone cable: A=π(12.7mm/2)² A=126.65micrometer ii): For 900-pair copper cable A'=π( 70mm/2)² A'= 3847.72micrometer Now ratio: A'/A= 126.65/3847.72 = 30.3
