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Why do the values of resistivity differ so much between materials?
Wiki User
∙ 11y ago
Resistivity varies because valence electrons vary, along with the lattice structure of the material.
Wiki User
∙ 11y ago
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Why are coefficients of friction unitl-ess values?
Contacting surfaces can be of various materials
What is the relationship between the dependent and independat variables?
dependent = y values, independent = x values
Why the coefficient of friction cannot be zero?
The coefficient of friction is an empirical measurement and has to be measured experimentally, and cannot be found through calculations. Rougher surfaces tend to have higher effective values. Most dry materials in combination have friction coefficient values between 0.3 and 0.6. Values outside this range are rarer, but Teflon, for example, can have a coefficient as low as 0.04. Therefore, a value of zero would mean no friction at all, an ELUSIVE property even magnetic levitation vehicles have drag.
Why might there be discrepancies between the measured values of different blocks?
the blocks might not be the same size.
What is insulating material used for?
insulating materials have low thermal/electrical conductivity values and hence can be used in applications where resistance to heat or resistance to the passage of electrical current is required.
Difference between resistance and resistivity?
Nothing. Resistivity is defined as specific resistance. However, Resistivity is different from resistance.Answer:Resistance is the opposition offered by the material which is of any shape and size whereas resistivity is the resistance offered by the material with unit area of cross section and unit length.Therefore, resistance varies depending upon shape and size of the material while resistivity is constant for a particular material.
Why is it that materials with moisture content has high k values?
Discuss why materials with moisture content have high k-values
Does every different conducting substance have a unique resistivity?
Please note that resistivity also depends on temperature.In the most general case, the answer is definitely NO; all superconductors have the same resistivity, namely zero. Other than superconductors, take a look at a table with some typical resistivity values. It would seem quite obvious that for a given temperature: * Two different substances will, in general, have different resistivities. * In practice, in some cases the difference in resistivity might be too small to reliably measure. * It should be possible to find two substances that have the same resistivity at a very specific temperature - since the temperature-dependence will vary from one material to another. * Likewise, it should be possible to design a mix of two substances, which exactly matches that of another, given, substance.
Do men and women differ in values?
yes
How and why did values and attitudes of Spartan culture differ from the values and attitudes of Athenians?
Spartans valued military strength, discipline, and self-sacrifice above all else, focused on creating a strong warrior society. Athenians, on the other hand, valued democratic governance, individual freedom, and arts and culture. The Spartans prioritized a militaristic and austere lifestyle, while Athenians emphasized intellectual pursuits, civic engagement, and artistic achievements.
How your own values in relation to hygiene might differ from those of individuals and how to deal with this?
how you own values in relation to hygiene might differ from those of individuals and how to deal with this
How values differ from skills?
"i search this qestion please help me
How do cultures and values from when Cherokee Indians to now differ?
dont now
How and why did the relative front values differ for each solvent system?
good
How and why did Rf values differ for each solvent system?
Due to the difference in relative affinity or partition coefficient differences between the sample and the stationary phase/mobile phase
What is countercultures?
People whose values differ from those of main stream society
Does white bread cause bloating?
Nutritional values of food products differ between manufacturers. Nothing in "white bread" should cause such a severe effect without allergy.
