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(a) With the help of a clearly labeled diagram explain the functioning of a basic thermocouple.
(b) Briefly explain the principle and operation of strain gauges. What is meant by gage factor "k" and give the equation to calculate the gage factor.
(c) Two strain gauges are mounted so that they sense axial strain on a steel member in uniaxial tension. The 120 Ω gauges form two legs of a Wheatstone bridge and are mounted on opposite arms. The gauge factor for each gauge is 2, the bridge constant is 2, and Em for steel is 200 MPa. For a bridge excitation voltage (Ei) of 4 V and a bridge output voltage (Eo) of 120 μV under load, estimate
a) the maximum strain in the member, and
b) the resistance change experienced by each gauge.
(d) Draw the block diagram of a simple frequency counter and explain how it operates
Q. Draw the differentiator circuit. Explain its principle of operation with necessary waveforms ? A circuit in which the output voltage is directly proportional to the derivati
what is defective capacitor?
the depletion layer in the pn junction is caused by
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Properties of a semiconductor: What properties of a semiconductor are determined from a Hall effect experiment ? Sol. The Hall Effect experiment is used to determine th
SID Input Serial input data single bit can be accepted through this pin using RIM command discussed in details in chapter8.
Q. List and explain the factors involved in the voltage build up of shunt generator. Ans. following factors are involved in voltage build up of shunt generation
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Q. A charge variation with time is given in Figure. Draw the corresponding current variation with time.
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