Question

The measured power, current, and voltage delivered to a load are 100W, 1A, and 120V respectively.Would the power factor be 0.83?

Answer 1

Do you know what power factor is?

Answer 2

yes

Answer 3

what is the relation between power, current and voltage?

Answer 4

I'm not quite sure sure why you're asking these questions but all i'm trying to do is make sure i'm right

Answer 5

I am not quite sure you are asking but all i'm trying to do is making sure you understand the solution.

In AC, the relation between power output is
\[power_{av}=\frac{1}{2}VIcos\phi\]or\[power_{av}=V_{rms}I_{rms}cos\phi\]

Here, you an see that cos ϕ is the power factor.

Answer 6

This is how I came up with 0.83. PF=P/Papp, Papp=IV

Answer 7

Then your 0.833 would be correct.