A steel surveyor's tape is to be used to measure the length of a line. The tape has a redtangular section of 2 cm by 0.5 cm and a length of 100 cm wher7, and the tension or pull on the tape is AA N. Determine the true length of the line if the tape shows the readingito be BB cm when used with a pull of CC N at T, .The ground on which it is placed is flat.

Elements Of Electromagnetics
7th Edition
ISBN:9780190698614
Author:Sadiku, Matthew N. O.
Publisher:Sadiku, Matthew N. O.
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Question 2(a) :
A steel surveyor's tape is to be used to measure the length of a line. The tape has a rectangular
section of 2 cm by 0.5 cm and a length of 100 cm wherT, and the tension or pull
on the tape is AA N. Determine the true length of the line if the tape shows the readingito be
BB cm when used with a pull of CC N at I, The ground on which it is placed is flat.
Take:
I, =
55
°C
P
85
°C
AA =
20
N
2 cm
BB =
463.2
CC =
35
N
0.5 cm
12(10-“)/°C
E,- 200 GPa
Solution :
δ,-α ΔΤL =
cm
PL
AE
cm
Рage 1
L =
463.2
cm
Ans
Transcribed Image Text:Question 2(a) : A steel surveyor's tape is to be used to measure the length of a line. The tape has a rectangular section of 2 cm by 0.5 cm and a length of 100 cm wherT, and the tension or pull on the tape is AA N. Determine the true length of the line if the tape shows the readingito be BB cm when used with a pull of CC N at I, The ground on which it is placed is flat. Take: I, = 55 °C P 85 °C AA = 20 N 2 cm BB = 463.2 CC = 35 N 0.5 cm 12(10-“)/°C E,- 200 GPa Solution : δ,-α ΔΤL = cm PL AE cm Рage 1 L = 463.2 cm Ans
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