Elements Of Electromagnetics
7th Edition
ISBN: 9780190698614
Author: Sadiku, Matthew N. O.
Publisher: Oxford University Press
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Describe the concepts of independent, dependent, and extraneous variables using the illustration of a pressure measurement system.
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Concepts of independent, dependent, and extraneous variables using the illustration of a pressure measurement system.
Illustration of a pressure measurement system to explain the concepts of independent, dependent, and extraneous variables:
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- 1. We can measure the velocity of a flow by using a pitot tube. (True or False) 2. It is the study of the thermodynamic properties of air. 3. A pressure transducer that utilizes an elastic element that usually oval in shape. It is fixed on one end and the displacement caused by pressure at the free end is measured.arrow_forwardThe transducer specified in Table 1.1 is chosen to measurea nominal pressure of 500 cm H2O. The ambient temperature is expected to vary between 18 ∘C and 25 ∘C duringtests. Estimate the possible range (magnitude) of each listedelemental error affecting the measured pressure. How do I calculate the sensitivity error? The solution that was given: Sensitivity error(eK) = (±0.0025)(500 cm H2O)= ± 0.75 cm H2O = ± 0.00375 V My Question is, how do you obtain 0.75 since 0.0025 x 500 gives 1.25! please help. thanksarrow_forwardi need the answer quicklyarrow_forward
- Please use penarrow_forwardSensitivity of an inclined manometer having an angle of 30 degree between inclined column and vertical is equal to …arrow_forward1. To determine the dynamic viscosity of a liquid you take repeated measurements of the liquid density and kinematic viscosity. These data are summarized in the following table: Avg. measurement Total Uncertainty P 999 kg/m³ ±0.5% V 1.23 mm²/s ±0.01 mm²/s kg Ns What is the dynamic viscosity? Give dynamic viscosity in units of; which is the same as ms 2. Determine the absolute and relative uncertainties in the dynamic viscosity.arrow_forward
- Pressurized eyes Our eyes need a certain amount of internal pressure in order to work properly, with the normal range being between 10 and 20 mm of mercury. The pressure is determined by a balance between the fluid entering and leaving the eye. If the pressure is above the normal level, damage may occur to the optic nerve where it leaves the eye, leading to a loss of the visual field termed glaucoma. Measurement of the pressure within the eye can be done by several different noninvasive types of instruments, all of which measure the slight deformation of the eyeball when a force is put on it. Some methods use a physical probe that makes contact with the front of the eye, applies a known force, and measures the deformation. One non-contact method uses a calibrated “puff” of air that is blown against the eye. The stagnation pressure resulting from the air blowing against the eyeball causes a slight deformation, the magnitude of which is correlated with the pressure within the eyeball.…arrow_forwardThe transducer specified in Table 1.1 is chosen to measurea nominal pressure of 500 cm H2O. The ambient temperature is expected to vary between 18 ∘C and 25 ∘C duringtests. Estimate the possible range (magnitude) of each listedelemental error affecting the measured pressure refering to the solution provided online, Sensitivity error(eK) = (±0.0025)(500 cm H2O)= ± 0.75 cm H2O = ± 0.00375 V how do you get 0.75?? shoud it not be 1.25? according the answer, for sensitivityarrow_forward1. Pressure & Fluid Statics Pipe Problem. The system shown in the figure is used to accurately measure the pressure changes Water when the pressure is increased by AP in the water pipe. When Ah = 70 mm, what is the change in the pipe pressure? Ah Glycerin, SG = 1.26 %3D D= 30 mm d= 3 mmarrow_forward
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