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What else can I help you with?
What would cause wavelengths to change?
A change in the medium through which the waves are traveling, like a change in density or temperature, can cause wavelengths to change. Also, the Doppler effect can cause the perceived wavelengths of waves to change when the source of the waves is in motion relative to the observer.
A cylinder if material is 10 cm and has a cross section of 2 cm if its resistance along the length b 20 ohm what will be its resistivity in si unit?
The resistivity of the material can be calculated using the formula: resistivity = resistance x cross-sectional area / length. Plugging in the values: resistivity = 20 ohm x 2 cm / 10 cm = 4 ohm cm. Since resistivity is measured in ohm meters (SI unit), the resistivity of the material in SI unit would be 0.04 ohm meter.
What is the effect of temperature on resistance of different metals?
with increase temperature in metal, thermal energy causes atoms in metal to vibrate, in this excited state atoms interact with and scatter electrons, thus decreasing the mean free path, and hence the mobility of electrons to decreases and resistivity increase(Resistivity = 1 / Conductivity )so conductivity of metal decrease as increasing in temperature
Would have the same resistance as a copper wire that is 4 m long and has a cross-sectional area of 0.066 cm2?
A wire with the same resistance as the given copper wire would have the same resistivity as copper. The resistance of a wire is dependent on its resistivity, length, and cross-sectional area. To calculate the resistance of a wire, use the formula R = (resistivity * length) / area; however, without the specific resistivity value, an exact value cannot be provided.
How many feet does the temperature change by 1 degree Celsius?
The temperature change of 1 degree Celsius is equivalent to approximately 1.8 degrees Fahrenheit. This means that the temperature would change by 1.8 feet when converted from Celsius to Fahrenheit.
What would environmental temperature change effect you?
Environmental temperature change would effect everything from crop growth to hibernation. It would effect me as a homo sapien greatly as all of my crops would be dying - leaving me to starve - and the temperatures that I have adapted to would no longer be the ones I would be subjected to. This could potentially be lethal. Of course, the effects of environmental temperature change would vary depending on the scale of the change.
What is the Change in resistivity of wire when its resistivity is doubled?
Resistivity of a wire of a certain material is independent of the wire's length. The only thing that would change is resistance. Since R=ρ/A, in the case of length doubling, resistance will also double.Resistance (R, Ω)Resistivity (ρ, Ω m)Length (, m)Cross surface area (A, m²)
How would you calculate current carrying capacity of the ACSR or AAAC conductor?
* ACSR or AAAC or anything else, it does not matter. * Conductivity depends on resistance of material and resistance depends on resistivity of material and some other factors. * Resistivity of any material is generally constant term and depends on material. resistivity of alluminium and cooper is different. * General equation for calculation of resistance is: R= SL/A where, R=resistance of material S=resistivity of material L = length of material and A = area of material and now finally I = V/R where, I = max. current which can pass at given voltage and temperature V=voltage applied R=resistance of material as calculated above remember R also depends on temperature also and varies with temperature....so for large change in temp. you will have to also consider that factor.
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.
If temperature is allowed to change in an experiment the temperature would be a?
The answer is variable.
What effect would thick clouds have on the temperature of Earth's surface?
It would block out significant sunlight, lowering the temperature.
What effect would thick cloud have on the temperature of Earth's surface?
It would block out significant sunlight, lowering the temperature.
What effect would thick cover have on the temperature of earths surface?
It would block out significant sunlight, lowering the temperature.
If i have the initial and after temperature how would i be able to find the change in temperature?
You can find the change in temperature by subtracting the initial temperature from the final temperature. For example, if the initial temperature is 20 degrees Celsius and the final temperature is 30 degrees Celsius, the change in temperature would be 10 degrees Celsius (30 - 20 = 10).
Why do conductor have a positive coefficent?
You mean positive temperature coefficient? Yes conductors as they get heated then due to the nucleii vibrating with greater amplitude would have a grip over the moving electrons and so the resistivity increases with the increase in temperature. Hence positive temperature coefficient.
What flows indefinitely in a superconductor?
A current of electricity can flow at the same strength for an indefinitely long time in a superconductor but only for as long as the superconductor is held below its critical temperature. If its temperature were allowed to rise to its critical temperature - or higher - the material would no longer behave as a superconductor: it would acquire resistivity which would restrict the flow of current.
What would cause wavelengths to change?
A change in the medium through which the waves are traveling, like a change in density or temperature, can cause wavelengths to change. Also, the Doppler effect can cause the perceived wavelengths of waves to change when the source of the waves is in motion relative to the observer.
