the question is wrongfour prob is better than two prob method as it eliminates the effect of wire imbedance as well as contact resistance
Both procedures are accurate but westergren is easier.
The Sceptical Chymist by Robert Boyle
Specialization just means that it has a limited number of purposes. It probably is not a big deal with reference to a space probe. However, it might be cheaper and lighter to construct than other probes.
You can make everything and see it more clearly , also, you will be able to understand it better than you would without it.
Boy are better in math than girls?
I assume you are referring to methods of measuring small value resistances, as in locating short circuits on a PC card. Two probe is the method used by standard ohm meters. This works OK for most resistance values, as the resistance of the leads & probes is much lower than the resistance being measured. But when the resistance being measured gets very tiny (e.g. a few milliohms) it fails as the resistance of the leads & probe are of the same order of magnitude and are in series with it. Four probe solves this problem by using two probes connected to a current source to drive the resistance and a separate two probes connected to a precision voltmeter calibrated in milliohms. The voltage drop in the leads due to the test current does not get measured by the calibrated voltmeter, as it does in two probe method. There is no voltage drop in the measurement leads as the voltmeter is high impedance.
railroads were better transportation than canals
Resistivity is a constant for a material as opposed to resistance which is dependent on size considerations. This is analogous to specific heat capacity and heat capacity. It can be said that resistivity is more useful for comparison because other factors (size) have been accounted for.In the case of using the four-probe method to measure the thickness of a thin film:ρ = (V/I) x (thickness of film) x (correction factor)We measure the current and voltage using the four-probe method, from which we can get the resistance between the probes. Knowing the resistivity, which is constant for the material and can be obtained from sources such as books, will enable us to relate the resistance to the dimensions of the film.
No, in poker, four of a kind is better than a full house.
I 4 got
Both procedures are accurate but westergren is easier.
if it's hundred-dollar bills, ten of them is better than four. If it's parking tickets, four is better than ten.
railroads
if your talking about Neil Armstrong and them, then America sent them to see what was out there better than a satellite or probe
yes,yes there is
.... Face palm ....
it would be charcoal dust that works better than iodine