Got Homework?
Connect with other students for help. It's a free community.
Here's the question you clicked on:
 0 viewing
Ruchi.
Group Title
a steel tape is calibrated at 20'c .on a cold day when the temperature is 15'c ,what will be percentage error in tape?
 2 years ago
 2 years ago
Ruchi. Group Title
a steel tape is calibrated at 20'c .on a cold day when the temperature is 15'c ,what will be percentage error in tape?
 2 years ago
 2 years ago

This Question is Closed

Ruchi. Group TitleBest ResponseYou've already chosen the best response.0
@tanvidais13 @csaltos @uncle
 2 years ago

Ruchi. Group TitleBest ResponseYou've already chosen the best response.0
@HELLSGUARDIAN
 2 years ago

HELLSGUARDIAN Group TitleBest ResponseYou've already chosen the best response.3
whenever something is heated it expands & when cooled it contracts..so this case can be considered as the case of cooling..use equation \[change \in length= \alpha \Delta T L\] where L is original length ,\[\Delta T\] is change in temperature..and \[\alpha \] is coefficient of thermal expansion of steel.. when u have found the change in length the %ge error will be given as (change in length/original length)*100 can u do the calculations?
 2 years ago

Ruchi. Group TitleBest ResponseYou've already chosen the best response.0
hey i hav to find percentage error intape.
 2 years ago

HELLSGUARDIAN Group TitleBest ResponseYou've already chosen the best response.3
it will be change in length/original length*100
 2 years ago

Ruchi. Group TitleBest ResponseYou've already chosen the best response.0
bt length is nt mention only temp. is mention
 2 years ago

HELLSGUARDIAN Group TitleBest ResponseYou've already chosen the best response.3
L in this formula will be cancelled as it is in both numerator and denominator..
 2 years ago

Ruchi. Group TitleBest ResponseYou've already chosen the best response.0
hey cn u solve it i'm nt getting u?
 2 years ago

HELLSGUARDIAN Group TitleBest ResponseYou've already chosen the best response.3
wait for 5 minute then i will upload the solution
 2 years ago

HELLSGUARDIAN Group TitleBest ResponseYou've already chosen the best response.3
you get it?
 2 years ago

HELLSGUARDIAN Group TitleBest ResponseYou've already chosen the best response.3
okay tell me where u have the doubt?
 2 years ago

Ruchi. Group TitleBest ResponseYou've already chosen the best response.0
change in length
 2 years ago

03225186213 Group TitleBest ResponseYou've already chosen the best response.0
orignal lenth is calibrated length and change is occur when measured at 15c
 2 years ago

03225186213 Group TitleBest ResponseYou've already chosen the best response.0
have u got it
 2 years ago

Ruchi. Group TitleBest ResponseYou've already chosen the best response.0
@UnkleRhaukus
 2 years ago

Ruchi. Group TitleBest ResponseYou've already chosen the best response.0
hey ash can u hlp me out
 2 years ago

ash2326 Group TitleBest ResponseYou've already chosen the best response.2
Yes. Where do you have trouble understanding?
 2 years ago

Ruchi. Group TitleBest ResponseYou've already chosen the best response.0
i'm nt geting the percentage error
 2 years ago

ash2326 Group TitleBest ResponseYou've already chosen the best response.2
All materials' length changes with temperature. Change in length is given as \[\Delta L=\alpha \Delta T L\] Here \(\Delta T\) is the change in temp. \(\alpha\) is the linear coefficient of thermal expansion. Do you get this formula?
 2 years ago

Ruchi. Group TitleBest ResponseYou've already chosen the best response.0
yes,after put result answer is nt coming
 2 years ago

ash2326 Group TitleBest ResponseYou've already chosen the best response.2
Let's find the change in length \(\alpha \) for steel= \(10.8\times 10^{6} / C\) C= degree centigrade What's \(\Delta T\) here?
 2 years ago

ash2326 Group TitleBest ResponseYou've already chosen the best response.2
it's 35. The length will decrease \[\Delta T=(15)(20)=35\]
 2 years ago

ash2326 Group TitleBest ResponseYou've already chosen the best response.2
\[\text{now find}\ \Delta L \ \text{in terms of L} \]
 2 years ago

Ruchi. Group TitleBest ResponseYou've already chosen the best response.0
nt getting ANSWER CORRECT
 2 years ago

ash2326 Group TitleBest ResponseYou've already chosen the best response.2
Do you have the answer?
 2 years ago

ash2326 Group TitleBest ResponseYou've already chosen the best response.2
Mind sharing here?
 2 years ago

ash2326 Group TitleBest ResponseYou've already chosen the best response.2
Does you question mentions the value of alpha?
 2 years ago

Ruchi. Group TitleBest ResponseYou've already chosen the best response.0
no ur answer that u get
 2 years ago

ash2326 Group TitleBest ResponseYou've already chosen the best response.2
It's because of the value of alpha. For steel it varies between \(1113 *10^{(6)} /C\) Use \(12\times 10^{6} /C\) and you'd get the answer
 2 years ago

ash2326 Group TitleBest ResponseYou've already chosen the best response.2
Do you get it?
 2 years ago

Ruchi. Group TitleBest ResponseYou've already chosen the best response.0
i think that if we use difference in reading we get the answer.in place of length
 2 years ago

Ruchi. Group TitleBest ResponseYou've already chosen the best response.0
@sauravshakya @shadowfiend @TuringTest
 2 years ago

Ruchi. Group TitleBest ResponseYou've already chosen the best response.0
@experimentX
 2 years ago
See more questions >>>
Your question is ready. Sign up for free to start getting answers.
spraguer
(Moderator)
5
→ View Detailed Profile
is replying to Can someone tell me what button the professor is hitting...
23
 Teamwork 19 Teammate
 Problem Solving 19 Hero
 Engagement 19 Mad Hatter
 You have blocked this person.
 ✔ You're a fan Checking fan status...
Thanks for being so helpful in mathematics. If you are getting quality help, make sure you spread the word about OpenStudy.