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 of 2.3 MΩ measured between two electrodes placed 20 cm apart along the leaf. The leaf has a width of 2.9 cm and is 0.20 mm thick.
1. What is the resistivity of the leaf tissue?
Express your answer to two significant figures and include the appropriate units.
rho=
2. Is this greater than or less than the resistivity of muscle tissue in the human body?
(A) greater or
(B) less
Answers: 3
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