Question 2 ; The Venus flytrap (Dionaea muscipula) is a carnivorous plant native to the East Coast of the United States. The plant uses rapid electrical signaling to close its leaf traps when triggered by an insect. This signaling generates action potentials like those in human nerve and muscle cells. The figure shows a trap’s action potential in green, and its corresponding magnetic field in blue (Fabricant et al., 2021). Such measurements of plant magnetic fields could be used in future plant diagnostics, just as MRIs are used in medical imaging today. If the resistance (R) of the trap is 0.97 x 106 Ω, and the action potential is V = 9 x 10-3 V, what is the current (I)? Show your calculations below and give your
Question 2 ; The Venus flytrap (Dionaea muscipula) is a carnivorous plant native to the East Coast of the United States. The plant uses rapid electrical signaling to close its leaf traps when triggered by an insect. This signaling generates action potentials like those in human nerve and muscle cells. The figure shows a trap’s action potential in green, and its corresponding magnetic field in blue (Fabricant et al., 2021). Such measurements of plant magnetic fields could be used in future plant diagnostics, just as MRIs are used in medical imaging today. If the resistance (R) of the trap is 0.97 x 106 Ω, and the action potential is V = 9 x 10-3 V, what is the current (I)? Show your calculations below and give your answer to two significant figures with the units.
Hint: use Ohm’s law: I = V/R, substitute the given values to find the current (I) in amperes (A).
Calculations:
Answer:
Question 3
What is the strength of the magnetic field (B) produced by the current (I) in Question 2, at a distance r = 7 mm? Give your answer to two significant figures with the units (tesla, T).
Hint: use the equation for the magnetic field (B) at a distance r from a current-carrying wire. Remember to change the distance from millimeters to meters:
The permeability constant is μ0 = 1.26 x 10-6 Tm/A, and I is the current in amperes found in Question 2.
Calculations:
Answer:
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