Please answer the all of Question one Question 11. Use suitable sketches to describe the principle of operation of a resistance strain gauge.2. Calculate the strain experienced by a rod of length 2m subjected to a force that causes achange of resistance of 0.2x 102 in the gauge Wheatstone bridge circuit. The straingauge has gauge factor of 1.5 and the resistivity of the Wheatstone bridge circuit wires is1.83×10* ohm-meter having a cross-sectional area 0.03m² and length 0.15m. |Question 21. Discussthe Seebeck effect.2. When the cold junction of a thermocouple thermometer is at 10°C and the hot junction at80 °C, the millivoltmeter shows a deflection of 3.5 mV towards the left. The hot junctionis now put in an unknown temperature while maintaining the cold junction at 10°C. Themillivoltmeter now shows a deflection of 4.7 mV towards the left. Calculate the unknowntemperature.Question 31. Derive the Rowing equation that relates velocity to pressure drop for the Pitot tube.000 002(P2-P.)V =2. A Pitot tube flow meter is installed in a horizontal cooling tower water return pipe thathas a diameter of 300mm. A differential pressure reading of 1 kPa is obtained from thesensor.Determine the following:(i) the velocity of water in the pipe,(ii) the volumetric flow rate of water in the pipe,

Givenlength=2mchange of resistance=0.2×10-10Ωgauge factor=1.5resistivity=ρ=1.83×10-8Ωm

Answered: 1. Use suitable sketches to describe…

Elements Of Electromagnetics

7th Edition

ISBN:9780190698614

Author:Sadiku, Matthew N. O.

Publisher:Sadiku, Matthew N. O.

ChapterMA: Math Assessment

Section: Chapter Questions

Problem 1.1MA

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Use appropriate diagram and sketches. Calculatethe strain experienced by a rod of length 2m subjected to a force that causes a change of resistance of 0.00002 Ω in the gauge Wheatstone bridge circuit. The strain gauge has gauge factor of 2 and the resistivity of the Wheatstone bridge circuit wires is 1.83 ×10-8 ohm-meter having a cross-sectional area 0.05m² and length 0.1m
Calculate the strain experienced by a rod of length 2m subjected to a force that causes a change of resistance of 0.00002 Ω in the gauge Wheatstone bridge circuit. The strain gauge has gauge factor of 2 and the resistivity of the Wheatstone bridge circuit wires is 1.83 × 10-8 ohm-metre having a cross-sectional area 0.05m² and length 0.1m.
A resistance, wire strain gauge with a gauge factor of 3 is bonded to a steel structural e subjected to a stress of 200 MN/m² The modulus of elasticity of steel is 400 GN/m² Calculate the % change in the value of the gauge resistance due to the applied stress
A strain gauge is used to measure the tension force in a 2-cm diameter bar of steel with Young modulus of 2.07 x 107 N/cm2 (30 x 106 lb./in.2). The strain gauge has a nominal resistance of 160 Ω and a GF of 5. The gauge is connected to a bridge supplied with a 10 Vdc. The bridge was initially balanced. After the bar is put under tension, the bridge output voltage is 0.0008 Vdc. Draw the schematic of the bridge (setup). Calculate the force on the bar.
19- What will be the change in resistance produced if the gauge is subjected to a strain of 0.003 ,the resistance of the strain gauge is 250 ohm and gauge factor is 2.7? a. None of the above b. 2.025 ohm c. 0.57 ohm d. 1.81 ohm
A single-strain gauge is mounted on the surface of a thin-walled pressure vessel that has a diameter of 1 m. For a strain gauge oriented along the tangential stress direction, determine the ratio between transverse and axial strain. The lateral sensitivity is 0.03. Take help from Mechanics of Material, Thin pressure vessels hoop stresses and longitudinal stresses equation.
6. State your answers to the following questions.Strain Gauge represents the deformation of a material through a change in resistance. If so, explain how temperature will affect the strain gauge in the experimental environment.①:In this experiment, the Strain Gauge measures the strain in micro units. Explain one possible error factor when applying a load by hanging a weight on the material with the strain gauge attached. (Hint: It is easy to shake by hanging the weight using a thread)①:
Manufacturing and measurement - 1. A single electrical resistance strain gauge of resistance 100 ohm and having a gauge factor of 2.5 is bonded to a metal having an elastic limit stress of 300 kN/m² and modulus of elasticity of 250 GN/m2 Calculate the change in resistance due to a change in stress equal to 1/20 of the elastic range of metal
Manufacturing engineering- A single strain gauge is mounted to measure the axial strain in a simple tensile member the recorded strain is 200 microstrain, what is the axial stress ? a) If the member is of steel? b) if the member is of aluminium ? The modulus of elasticity of steel is 200 GPa and that of aluminium is 70 GPa
5- B) What do you mean by strain? A strain gauge has a resistance of 157.4 ohms and a gauge factor of 2.7. Find the change in resistance of the gauge for a strain of 0.0017.
The 45° strain rosette is mounted on a surface of the bracket . The bracket is made from steel with Esteel = 120 GPa and poison ratio, v = 0.28. The following readings are obtained for each gauge under loadings:Ɛa = [ X+Y ] (10-6)Ɛb = -200(10-6)Ɛc = -180(10-6) x=100, y=100 (a) Estimate the in-plane principal strains and the angle associated with the principal strains, and (b) Calculate the principal stress associated with the principal strains in (a).
38) A tensile test specimen has a gauge length =2in. and a diameter= 0.875in. Yielding occurs at a load of 35,500lbs. The corresponding gauge length= 2.0113in (neglect the 0.2% yield point. The maximum load of 45,000lb is reached at a gauge length=2.543in. Determine the modulus of elasticity (neglect the 0.2% offset, and round to the nearest whole Msi)

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