Maple TA Quiz 17-2

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Maple TA Quiz 17-2

Post  helping on Tue Feb 10, 2009 8:57 pm

Question 1: Square root of (W/(1000*R))

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Re: Maple TA Quiz 17-2

Post  helping on Tue Feb 10, 2009 8:58 pm

Question #1 is negative, by the way.

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Re: Maple TA Quiz 17-2

Post  helping on Tue Feb 10, 2009 9:05 pm

Question 2: The value provided, squared. The answer is negative.

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Re: Maple TA Quiz 17-2

Post  helping on Tue Feb 10, 2009 9:24 pm

Question 4: I1 + I2. The answer is negative.

Answer may differ if a different image is loaded in your quiz (for this particular question).

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Re: Maple TA Quiz 17-2

Post  helping on Tue Feb 10, 2009 9:31 pm

Question 3: V-(I*R). The answer is positive.

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Quiz 17-2

Post  User 87 on Thu Feb 12, 2009 12:21 pm

THANK YOU!!!!

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#2

Post  at on Thu Feb 12, 2009 7:20 pm

thanks, but could u explain how u got the answer for #2? i tried using the R = p(L/A) and P = (V/R)V formulas, but i couldnt figure it out. thanks

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Re: Maple TA Quiz 17-2

Post  helping on Mon Feb 16, 2009 10:57 pm

Regarding the question above:

Here's how I did it: First I wrote out the equation R=p(L/A) so that it looked like this: R=p(L/(pi*r^2)). I wrote out the equations, one of them having the value provided (mine was 1.2 something) multiplied onto the r: R=p(L/(pi*r^2)) & R(prime)=p(L/(pi*(1.2r)^2)).

At this point, you can begin calculating the proportion: R/R(prime) = (p(L/(pi*r^2)))/(p(L/(pi*(1.2r)^2)))

Once all is said and done (and you've eliminated all like terms - p, L, pi, r^2), you're left with that same value provided, only squared. And that's your answer.

I hope that helps.

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Re: Maple TA Quiz 17-2

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