Already have an account? Get multiple benefits of using own account!
Login in your account..!
Remember me
Don't have an account? Create your account in less than a minutes,
Forgot password? how can I recover my password now!
Enter right registered email to receive password!
Determine the resistance and temperature-coefficient:
A platinum coil has a resistance of 3.146 Ω at 40oC and 3.767 Ω at 100oC. Determine the resistance at 0oC and the temperature-coefficient of resistance at 40oC.
Solution
Rt = R0 + α0 R0 (t - t0 )
Take t0 = initial temperature = 0o.
Rt = R0 + α0 t R0
= R0 (1 + α0 t )
R100 = R0 (1 + 100 α0) at t = 100 C ------- (i)
And R40 = R0 (1 + 40 α0 ) at t = 40oC ---------- (ii)
From Eqs. (i) and (ii)
3.767 /3.146 = 1 + 100 α0/1 + 40 α0 ⇒ α = 0.00379 pero C
From Eq. (i)
∴ 3.767 = R0 (1 + 100 × 0.00379)
R0 = 2.732,
α40 = 1/( (1/ α0) + (t2 - t1 ) =1/ (1/0.00379) + (40 - 0) = 1/304 per o C
Q. A common requirement is conversion from one digital code to another.Develop a table of the BCD code and the excess-3 code to be derived from it, for the decimal digits 0 to 9. S
principle of resistive feedback circuit change when the square wave and triangular pulse frequencies, the amplitude of the triangle wave
An automotive manufacturing company is planning to bring out a new model of a compact car for the Indian market. One of the critical tasks is choosing an engine with a proper engin
what is aphasor
Q. What is Pinch - off voltage? The reverse bias is relatively large near the source. As a result, the depletion region intrudes into the channel near the drain, and the effec
Delay time ( t d ) Initially a thyristor remains in forward blocking stat when anode to cathode forward voltage is applied and gate to cathode circuit is opened. As t
short note on cumulative error
Collector-to-base bias: Figure: Collector-to-base bias This configuration uses negative feedback to avoid thermal runaway and stabilize the operating point. In th
color coding
Change the brightness of the most beneficial illuminated LED to represent voltages among the ranges so that if the value is half way among the range then the LED should be 50% brig
Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!
whatsapp: +91-977-207-8620
Phone: +91-977-207-8620
Email: [email protected]
All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd