# cell constant is maximum in case of 1)wire of length 100m and cross sectional area 100m^2 2)wire of length 10m and cross sectional area 10m^2 3)one meter cube of a material  4)equal in all cases

Dear Student,
Cell constant K=$\frac{l}{A}$
the units are m-1 , cm-1
putting the value of each case given above we find that the cell constant comes to be 1 equal in all cases hence option (4) is correct.

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