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The power $P$ (in $\mathrm{W}$ ) used by a kitchen appliance is $P=i^{2} R,$ where $i$ is the current and $R$ is the resistance. Find the power used if $i=4.0 \mathrm{A}$ and $R=2.4 \Omega$.

Calculus 3

Chapter 29

Partial Derivatives and Double Integrals

Section 1

Functions of Two Variables

Partial Derivatives

Campbell University

Harvey Mudd College

University of Michigan - Ann Arbor

University of Nottingham

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Electrical Power: The powe…

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so here as to determine which number sets I belongs to. Given the following parameters, I is equal to the square root of W over our and in this situation, W is equal to 100 our is equal to 25. So we'll start by solving our equation and plugging in our values. And that will give us the square root of 100 over 25 which is equal to the square root of four, which can be simplified into two. So I hear is equal to so therefore, I belongs to riel numbers because we're only dealing with real numbers in this chapter. The other option would be for its being imaginary number. It is a natural number because it's a number used in counting. It's a whole number, because again it's a natural number and whole numbers include natural numbers and zero Uh, it's an imager again because it's a natural number and imagers include natural numbers. They're opposites and zero, and it's also an a rational number because it can be written as a fraction. So here it could be written as two over one

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The number 2 is also the smallest & first prime number (since every other even number is divisible by two).

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