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Introductory Physics Homework Help
When can we use Vpp in calculations involving Ohm's law?
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[QUOTE="tiny-tim, post: 4521389, member: 112022"] Hi Physixs! Welcome to PF! :smile: For P = VI we can use V[SUB]rms[/SUB] and I[SUB]rms[/SUB], or we can use V[SUB]p[/SUB] and I[SUB]p[/SUB] [I]with an extra factor of 1/2[/I]. (for the detailed equation, see eg the pf library on [URL="https://www.physicsforums.com/library.php?do=view_item&itemid=303"]impedance[/URL]) Obviously, rms is more convenient! :wink: For V = IR, I don't see that it makes any difference, so long as you use the same type (rms or p or pp) for both V and I. :wink: [/QUOTE]
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Introductory Physics Homework Help
When can we use Vpp in calculations involving Ohm's law?
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