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2 years ago

What is the blood resistivity if a 9.0 v potential difference causes a 210 μa current through the blood in the vein?

Physics

1 answer:

VLD [36.1K]2 years ago

5 0

<h3><u>Answer;</u></h3>

= 42,857.14 ohms.

<h3><u>Explanation;</u></h3>

According to ohm's Law; the current through a conductor is directly proportional to the potential difference at a constant temperature.

Therefore; V I, thus; V = IR , Where R is the resistance.

Hence; Resistance, R = V/I

In this case;

Resistivity of column of blood = E/I

= 9/.00021,

<u>= 42,857.14 ohms. </u>

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Answer:

5 × 10¹⁰ or 5 billion times louder is the intensity of sound at a rock concert in comparison with that of a whisper

Explanation:

Given that at a rock concert;

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Now; how many times louder will that of the whisper be compared to the sound of the rock concert

Using the formula for calculating decibels (dB);

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