Resistivity measurements on the leaves of corn plants are a good mode to assess stress and overall health. The leaf of a corn plant consists of a resistance of 2.3 MΩ measured between two electrodes placed 20 cm apart all along the leaf. The leaf consists of a width of 2.1 cm and is 0.20 mm thick.
i) Determine the resistivity of the leaf tissue?
ii) Is this bigger than or less than the resistivity of muscle tissue in the human body?