A cylindrical wire is compressed in length by 10%. The
percentage decrease in the resistance will be?????
- 8 Answers
- 19808 Views
- I also Faced
- E-Mail Answers
Answer Posted / ashlesha
R=p*l/A
Length is decreased by 19% so
L'= 90%of l
=0.9l
Volume remains the same and area increased by 10%
So, new area=1.1A
R=0.9l/1.1A=081R
Change in resistance=1-0.81
=0.19
0.19=19%
| Is This Answer Correct ? | 6 Yes | 0 No |
Post New Answer View All Answers
What is the current carrying capacity of 35sq.mm flexible cable?
How to calculate total harmonic distortion level(THD) in VFD? and how can we reduce harmonics?
How u can give the overload setting to any motor protection relay for a HT motors with formula and Example?
In MEP Services what are parts of STP and what are there function?
what is the differencce inn series and cascade connection??
what is a synchronizing lamp ?
how the characterstics of control valve being done
given data are load current & power factor cable core size? plz any one update the calculation formula
can we conduct the swineburne's test on a dc series motor? why?
what is the ATS .And how it works.
(1)Can earth and be conected together (2) what is the diferent between earth & neutral
What will happen if the voltage in my house drops from 220V to any lower voltage?
Is it possible to download the Siemens Selection Chart(TYPE 2 coordination) for 1) fuseless selection 2)Fuse selection
Between educational qualification and practical work experience, give us a brief explanation on your practical experience in your past Endeavour that you performed well to the satisfaction of your past or present employer?
What is contract demand in solar system?
