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nlexa [21]
4 years ago
12

What is the blood resistivity if a 9.0 v potential difference causes a 240 μa current through the blood in the vein?

Health
1 answer:
tresset_1 [31]4 years ago
7 0
<span>38k ohms The conductor in this case may be biological, but knowledge of biology isn't needed to solve the problem. Using ohm's law I = V/R we can calculate any of the 3 values, when given the other 2. First, substitute the known values into the formula. I=V/R 0.000240 = 9 / R Now solve for R. First, multiply both sides by R 0.000240 R = 9 And divide both sides by 0.000240 R = 37500 So the blood resistivity in this example is 37500 ohms. Rounding to 2 significant figures gives 38k ohms.</span>
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