Thread: I keep getting wrong answer for sim[;e physics

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If power is 10 to the 6 and resistance is 100 ohms, what is my current

Originally Posted by Greg

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If power is 10 to the 6 and resistance is 100 ohms, what is my current

How does the attachment relate to this question? What is "a"?

RonL

Sorry I got my questions mixed up. Itwas only the physics one I had trouble with

Originally Posted by Greg

Sorry I got my questions mixed up. Itwas only the physics one I had trouble with

P=vi
v=iR,

so:

P=Ri^2,

or:

i=sqrt(P/R)=sqrt(10^6/10^2)=100 amps

RonL

Originally Posted by Greg

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If power is 10 to the 6 and resistance is 100 ohms, what is my current

Though CaptainBlack is doubtless correct in his solution I would like to point out to Greg that you need to use units!
W? kW? mW? Some other unit? We just don't know!

Oh, and since I'm ranting ( ) the unit for resistance is "Ohms" with a capital "O" because it is named for a person.

-Dan