# Problem 22.21 Resistivity measurements on the leaves of corn plants are a good way to assess...

###### Question:

Problem 22.21

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.

Part A

What is the resistivity of the leaf tissue?

Part B

Is this greater than or less than the resistivity of muscle tissue in the human body?

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