Question

how will you test the electrical conductivity of a given material​

Answer 1

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⚘ The ohmmeter does this automatically using the equation R=V/I. That is, the ohmmeter divides the voltage (in volts) by the amperage (in amperes) to give us the resistance in ohms.

⚘ Calculate the resistivity using the following equation: o = l/RA. l is the length of the sample (in meters), R is the resistivity (in ohms) and A is the area of the sample (in square meters). This will give us the conductivity o (in ohm meters¹). The official unit of measure for electrical conductance is the siemens (S) which is defined as an inverse ohm (ohm¹).

⚘ Keep a table of electrical conductivities handy. This can help you determine the purity of your sample. Silver, for instance, has the highest conductivity of any metal at 6.3 x 10⁷ S/m

Answer 2

Explanation:

We can test the electrical conductivity of a given Material by using ohmmeter...

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