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The relation between shear stress Z and velocity gradient   of a fluid is given by ​ + B where A, n and B are constants. Which of the following conditions will hold for a Thixotropic fluid?
  • a)
    A = 0;B ≠ 0; n > 1
  • b)
    A ≠ 0;B = 0; n > 1
  • c)
    A = 0;B = 0; n < 1
  • d)
    A ≠ 0;B ≠ 0; n < 1
Correct answer is option 'D'. Can you explain this answer?
Verified Answer
The relation between shear stress Z and velocity gradient of a fluid ...
Explanation: For Thixotropics, shear stress will not remain constant after an yield value of stress. Thus, A ≠ 0;B ≠ 0. After the yield value, the rate of change of the shear stress decreases with the increase in the value of velocity gradient. Thus, n < 1.
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Most Upvoted Answer
The relation between shear stress Z and velocity gradient of a fluid ...
Explanation: For Thixotropics, shear stress will not remain constant after an yield value of stress. Thus, A ≠ 0;B ≠ 0. After the yield value, the rate of change of the shear stress decreases with the increase in the value of velocity gradient. Thus, n < 1.="" />
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The relation between shear stress Z and velocity gradient of a fluid is given by​+ B where A, n and B are constants. Which of the following conditions will hold for a Thixotropic fluid?a)A = 0;B ≠ 0; n > 1b)A ≠ 0;B = 0; n > 1c)A = 0;B = 0; n < 1d)A ≠ 0;B ≠ 0; n < 1Correct answer is option 'D'. Can you explain this answer?
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