Resistivity measurements on the leaves of corn plants are a good way to assess stress and overall health. The leaf of a corn plant has a resistance of2.1M? measured between two electrodes placed20 cm apart along the leaf. The leaf has a width of2.8cm and is 0.20 mm thick.
What is the resistivity of the leaf tissue?
Is this greater than or less than the resistivity of muscle tissue in the human body?