wiz-icon
MyQuestionIcon
MyQuestionIcon
1
You visited us 1 times! Enjoying our articles? Unlock Full Access!
Question

A thermocouple can be considerd as a single capacity system with a time constant of 100 ms and unity gain. It is immersed in a heat bath whose temperature is varying at 1oC/s from 0oC . When the actual temperature of the heat bath is 70 oC , the reading of the thermocouple will be

A
70.1oC
No worries! We‘ve got your back. Try BYJU‘S free classes today!
B
71oC
No worries! We‘ve got your back. Try BYJU‘S free classes today!
C
69.9oC
Right on! Give the BNAT exam to get a 100% scholarship for BYJUS courses
D
69oC
No worries! We‘ve got your back. Try BYJU‘S free classes today!
Open in App
Solution

The correct option is C 69.9oC
Error is measurment when a ramp of magnitude 'k' is applied is
ess = kτ
where, τ = time constant

ess=1oCsec×100×103sec=0.1oC
the reading of the thermocouple will be
= 70o0.1oC=69.9oC

flag
Suggest Corrections
thumbs-up
0
Join BYJU'S Learning Program
similar_icon
Related Videos
thumbnail
lock
Principle of calorimetry
PHYSICS
Watch in App
Join BYJU'S Learning Program
CrossIcon