Question

Another related rates question

Answer 1

A voltage V across a resistance R generates a current I (in amps) by the formula given. A constant voltage of 9 volts is put across a resistance that is increasing at a rate of 0.2 ohms per second. Find the rate the current is changing when the resistance is 5 ohms

Answer 2

@freckles

Answer 3

@freckles

Answer 4

have you applied quotient rule?

Answer 5

or if you don't like quotient rule we can rearrange it so we can do product rule

Answer 6

\[I \cdot R=V \\ V=I \cdot R \]

Answer 7

use product rule