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Q What is temperature of inversion?
Maintain the temperature of the cold junction constant the temperature of the hot junction is gradually increased. The thermo emf increase to a maximum at a temperature (θn) called neutral temperature and then slowly decreases and eventually becomes zero at a particular temperature (θi) called temperature of inversion. Further than the temperature of inversion the thermo emf changes sign and then increases.
The beam below is supported at A and B. F1 and F2 in kN are given in P21 and P22 respectively. F3 in kN is given in P23 and the couple in kN.m is given in P24. Assume that F1, F
find distance from the centr the principal maxima
Which of two, namely potentiometer and voltmeter is preferable to calculate the emf of a batter? Why? When is the series combination of cells advantageous and why?
what do you mean by retardation plates?explain their functioning by taking an example of a quarter wave plate
What is electric flux? Write its S.I. units. Using Gauss's theorem, assume an expression for the electric field at a point because of a uniformly charged infinite plane sheet.
Can you give the condition for dispersion without deviation and illustrate colour has got the maximum angle of deviation?
Micro Waves: Micro waves are radio waves with shorter wavelength among 1mm to 300cm. Microwaves are used in Radar and microwave ovens.
A seat of EMF is in sequence with a resistor R1 and with a parallel combination of two other resistors R2 and R3. R2 is a changeable resistor whose resistance can be changed just b
Digital multimeters: Digital multimeters offer a number of significant advantages when compared with their more humble analogue counterparts. The display fitted to a digital m
nicol prism and its application how to easily undestanding to teach the student
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