An electric eel delivers a current of 0.70 A to a small pencil-thin prey 15 {\ m

Question

An electric eel delivers a current of 0.70 A to a small pencil-thin prey 15 { m cm} long.



1f the eel's "bio-battery" was charged to 600 V, and it was constant for 20 { m ms} before dropping to zero, estimate the resistance of the fish.
Express your answer using two significant figures.

2 Estimate the energy delivered to the fish.
Express your answer using two significant figures.


3. Estimate the average electric field (magnitude) in the fish's flesh.
Express your answer using two significant figures.

Explanation / Answer

use this equation P=(iV)=(V^2)/r This is the potential energy equation in circuits. so plulg it in and solve for r r= 8.57X10^2 ohm. you could also use v=ir and solve for r which is easier. i=current btw. for 2. Use this equation P=iV=600X0.7=4.2X10^2J 3. so first find the charge. Q i=q over change in t change in t is 20 second. (i don't understand wat m ms} means...) so i assume its seconds, change it if i was wrong. so solve for change in q u get 14 Columbs Use E=kq/(r^2) since u want the average, u use r=0.075meters. You look at the point in the middle, since the fish is 15cm long, u look at 7.5cm place to ge the average. solve for E u get 2.23X10^13 as ur final answer.

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