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Why germanium is used in four probe method?

Updated: 8/21/2019
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Q: Why germanium is used in four probe method?
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In experiment to determine the energy band gap of ge crystal using four probe method why it is called four probe method?

Coz in this expermnt oven containing four probes is used to maintain the continuity with crystal


What are Disadvantages of two probe method to measure resistivity?

volume of material used


Why silicon has low leakage of current as compared to germanium?

Each has four valence electrons, but germanium will at a given temperature have more free electrons and a higher conductivity. Silicon is by far the more widely used semiconductor for electronics, partly because it can be used at much higher temperatures than germanium.


What is the advantage of four probe method over other conventional methods?

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.


What element is used in making transistors and chips?

Silicon and Germanium are the elements used in transistors


Where is germanium and silicon located in computer chips?

Germanium is not used in integrated circuits. Silicon is.


Why germanium semiconductor is used in hall effect experiment not silicon?

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Where can you find an used Ford Probe to purchase?

at a used ford probe store? that or eBay


What is germanium used for?

It is used in transistors and other electronic devices.


When was germanium last used?

Today as you read this.


Is silicon and germanium used as alloys?

yes


What are method used to irrigate the farm in Pakistan any four?

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